JB INDUSTRIES DV-142-FLEX Platinum 2 Stage Direct Drive Vacuum Pump Instruction Manual

: July 21, 2024
: JB Industries

Table of Contents

JB INDUSTRIES DV-142-FLEX Platinum 2 Stage Direct Drive Vacuum Pump
Product Usage Instructions
OPERATION
PUMP MAINTENANCE
PLATINUM PUMP MODELS
Operation
Cleaning and Testing Your Vacuum Pump
USING CHARGING AND TESTING HOSES
TESTING THE VACUUM PUMP’S ISOLATION VALVE
DIGITAL MICRON GAUGES
TROUBLESHOOTING AND REPAIR
Flexible Couplers
Sight Glass Repair
CROSS REFERENCE OF VACUUM MEASUREMENTS
ACCESSORIES
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

JB INDUSTRIES DV-142-FLEX Platinum 2 Stage Direct Drive Vacuum Pump

JB-INDUSTRIES-DV-142-FLEX-Platinum-2-Stage-Direct-Drive-Vacuum-Pump-product-
image

Specifications

Model: Platinum 2-Stage Direct Drive Vacuum Pump Series
Motors: 1/2 HP, 1725 RPM
Voltage: 115v/60Hz
Intake Port: Various sizes depending on the model
Oil Capacity: Ranges from 21oz to 26oz depending on the model

Product Usage Instructions

Adding Oil
Step 1: Slowly add oil until the level rises to the top of the oil level line.
Step 2: Replace the oil fill plug.
If the oil level is too low, you will hear air coming out of the exhaust. If it’s too high, excess oil will be blown out of the exhaust. Ensure the oil level is above halfway in the sight glass.

Changing Oil
Step 1: Close the oil drain valve on the pump.
Step 2: Remove the oil fill plug and fill to the top of the oil level line with BLACK GOLD Pump Oil.
Step 3: Replace the oil fill plug.

Flushing Oil
Step 1: Always drain the pump before flushing.
Step 2: Slowly pour 1/3 to 1/2 cup of BLACK GOLD Pump Oil into the intake connection while the pump is running.
Step 3: Repeat as necessary until contamination is removed from the oil reservoir, pump rotors, vanes, and housing.
Step 4: Dispose of all oil used in flushing. Do not start the pump before adding new oil.

Pump Maintenance
It is essential to use oil specifically refined for deep vacuum pumps to maintain your pump’s performance and longevity. Regularly check and change the pump oil after each use or if heavily contaminated.

FAQ

Q: What should I do if I hear air coming out of the exhaust?
A: If you hear air coming out of the exhaust, it indicates that the oil level is too low. Slowly add oil until it reaches the appropriate level.
Q: How often should I change the pump oil?
A: Pump oil should be changed after each use. If the system is heavily contaminated, oil changes may be required multiple times during evacuation.

WARNING: UNIT DRAINED OF OIL FOR SHIPMENT. DO NOT OPERATE WITHOUT ADDING OIL.

IMPORTANT
WARNING: UNIT DRAINED OF OIL FOR SHIPMENT. DO NOT OPERATE WITHOUT ADDING OIL.

INTRODUCTION
Each PLATINUM® vacuum pump has been factory tested to guarantee 15 microns (25,4000 Microns = 1 Inch of Hg) or better, and listed CFM performance. The serial number has been recorded. Complete and mail the enclosed Warranty Registration Card or register online at www.jbind.com within 10 days of purchase to validate your warranty.
NOTE: PLATINUM® pumps are not to be used on Ammonia or Lithium Bromide (salt water) systems. Pump maintenance is the responsibility of the owner.

MOTOR SPECIFICATIONS
Pump and oil must be above 30°F. Line voltage must be equal to motor nameplate ±10%. Normal operating temperature is approximately 160°F, which is hot to the touch. Line voltage and ambient conditions can slightly affect this. Motor has automatic resetting thermal overload protection.
The PLATINUM® is designed for continuous duty and will run for extended periods without overheating.

OPERATION

The following procedures will prevent oil from being drawn into the pump cartridge and creating hard start-up.
Start-up: Close both sides of manifold and make connection to vacuum pump or auxiliary blank-off equipment. Open one intake port and isolation valve, close gas ballast valve and start pump. Make vacuum connections (Figure 1).
Crack gas ballast valve for the ﬁrst part of the evacuation procedure. After pump quiets down from initial volume of air, close valve and continue evacuating. Failure to close valve will result in poor pump performance. Start pump.
Shutdown: Close isolation valve and open gas ballast valve all the way. Continue running pump for 2-3 seconds. With gas ballast valve still opened, stop pump and then close valve. Remove hose connections and cap intakes (Figure 1).

Isolation (Blank-Off) valve: Quarter-turn on/off. No additional valve needed to isolate system.
When checking pressure rise, slowly turn handle counter-clockwise. Pause at 45°. Valve is completely closed at 90°.

PUMP MAINTENANCE

In order to make the best use of your investment, familiarize yourself with the features and operating instructions before starting pump. With routine care and following proper maintenance guidelines, your PLATINUM® will give you years of reliable service. PLATINUM® pumps are designed for deep vacuum work in air conditioning and refrigeration systems.
For a complete overview of proper care and pump maintenance, refer to the Keeping the Life in your Pump section on page 4.

Adding Oil
Step 1: Slowly add oil until level rises to the top of the oil level line. (Figure 2)

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Step 2: Replace oil ﬁll plug.
If oil level is too low, you will hear air out of the exhaust.
If oil level is too high, excess oil will be blown out of the exhaust.
IMPORTANT: Use oil speciﬁcally reﬁned for deep vacuum pumps. Using oil not reﬁned for deep vacuum pumps and/or operating with contaminated oil will void warranty.
Pump oil should be changed after each use. If system is heavily contaminated, oil may have to be changed several times during evacuation. After initial ﬁll up, it is best to check oil level with pump running.
After evacuation, oil contains rust forming water and corrosive acids. Drain immediately while pump is warm.

Changing Oil
To reach deep vacuum, PLATINUM® pumps need clean, moisture-free oil throughout evacuation. Care should be taken to avoid contact on skin and clothing when changing oil. Used oil should be disposed of in the DV-T1 TANK Oil Caddy after every evacuation while the pump is warm and the oil is thin.
Step 1: Place the TANK on a level surface. Unscrew black plug in drain base to open.
Step 2: Place vacuum pump in the cradle and drain pump.
Step 3: When pump has ﬁnished draining, replace black plug. The TANK can hold up to ﬁve oil changes.
Step 4: Close oil drain valve on pump. Remove oil ﬁll plug and ﬁll to top of oil level line with BLACK GOLD Pump Oil (Figure 2). Replace oil ﬁll plug.

Flushing Oil
Step 1: Always drain pump before ﬂushing. If the oil is badly contaminated, ﬂushing may be necessary.
Step 2: Slowly pour 1/3 to 1/2 cup of BLACK GOLD Pump Oil into the intake connection while pump is running.
Step 3: Repeat as required until contamination is removed from oil reservoir, pump rotors, vanes and housing.
Step 4: Dispose of all oil used in ﬂushing of pump.
WARNING: DO NOT START PUMP BEFORE ADDING OIL

Black Gold Pump Oil
Acts as a coolant, lubricant and sealant—simultaneously.

DV-T1 Tank Pump Oil Caddy

Change oil between jobs
No more mess and spills
Easy, convenient, and portable
Capacity for ﬁve oil changes

PLATINUM PUMP MODELS

PREMIUM PUMPS

DV-BP-AC

*Specify plug type when ordering; -250 for US, -250EU for EU, -250UK for UK.

PLATINUM® FLEX AC AND BATTERY POWERED VACUUM PUMP
NOTE: The JB Industries Platinum FLEX pump uses the same style pump cartridge as the AC-powered platinum pumps. Please follow the same instructions as the other pumps in this manual. The instructions below are speciﬁc to the JB Industries Platinum FLEX battery powered pump.

Operation

To operate the JB Industries Platinum FLEX battery powered pump, use only JB Industries Lithium-ion battery packs (minimum 18v 9Ah). Alternatively, the JB Industries AC adapter can be used to power the pump for extended periods or when a charged battery is not available. For best performance and run time, make sure to fully charge your JB 18v 9Ah battery prior to use. Slide the battery into the motor housing connector until the side release tabs “click” and lock the battery into place. Press and hold the power button to start the pump, press and hold it again to stop the pump. The JB Industries Platinum FLEX pump has a low-voltage circuit that includes a buzzer and red LED. This circuit will beep and ﬂash the LED to notify the user that the battery is running out of power. A slow beep/ﬂash indicates that the battery has less than 3 minutes of run time remaining. A fast beep/ﬂash indicates that the battery has approximately 30 seconds of run time remaining. The Platinum FLEX pump has an internal check valve that will help prevent loss of vacuum if the motor stops. However, the best practice is to blank off the isolation valve before the low-voltage circuit disables the motor. The low-voltage circuit will stop the motor when the battery is discharged to protect the battery from becoming permanently damaged. To remove the battery, pinch the side release tabs on the battery and slide it away from the pump. To resume running the pump, slide a charged battery (or the AC adapter) in the motor housing connector and turn the pump back on. Allow the discharged battery pack to cool and then place it on the charger to recharge it.

Battery
The JB Industries Lithium Ion battery has a charge indicator. Press the button on the battery to see the existing charge level. Please read the user manual that was included with your battery for more details.

Battery Charging
Slide battery onto the charger to initiate charging. Only charge the battery when the temperature is between 41° (5°C) and 104°F (40°C). The JB charger will show a red light while charging the battery, and will show a green light when charging is complete. It will automatically stop charging when the proper voltage is achieved to prevent damage to the battery cells. Please read the user manual that was included with your charger for more details.

AC Adapter
The JB Industries Platinum FLEX battery powered pump can be used with an AC adapter. This allows the pump to operate for extended periods without relying on battery power. To use the AC adapter, slide the adapter into the motor housing connector until the side release tabs “click” and lock the adapter into place. Plug the AC cable into an available outlet. Check to make sure there is a green light on the power brick. Press and hold the power button to start the pump, press and hold it again to stop the pump. Please read the user manual that was included with your AC adapter for more details.
WARNING: Do not remove the battery or AC adapter from the pump while it is running. Doing so may create a spark which could potentially cause a ﬁre or explosion.

IMPORTANT
JB PUMPS ARE NOT TO BE USED ON AMMONIA OR LITHIUM BROMIDE (SALT WATER) SYSTEMS. PUMP MAINTENANCE IS THE RESPONSIBILITY OF THE OWNER.

KEEPING THE LIFE IN YOUR PUMP— TECH TIPS FROM THE PROS
Remember to change the oil. JB recommends changing oil after every evacuation and for larger jobs, it may need to be changed a few times. Hydroﬂuoric and hydrochloric acids and moisture collect in the oil. Left sitting in a pump, they act as an abrasive on internal surfaces, rusting and corroding them.

Cleaning and Testing Your Vacuum Pump

One of the easiest ways to spot if your pump is in need of a good cleaning is to look at the sight glass. If the oil looks milky, rusty, or full of debris, then the inside of the pump is in worse shape (Figure 3).
To clean, start the vacuum pump and allow it to run for about 15 minutes to warm up the oil. Make sure that you have allowed enough working room to safely drain and capture the oil. After the oil has stopped dripping, tilt the pump forward to remove any remaining excess oil (Figure 4). Let sit for a few minutes and return the pump to its normal running position. Repeat tilting forward. Close drain valve. Dispose of contaminated oil properly.
Once the oil has been completely removed, stand the pump on the nose of the cover (Figure 5) and remove either the two rubber feet from the bottom of the pump or remove pump base (depends on the age of the pump which option is available).
Next, turn the pump on to the motor end (Figure 6) and remove the 6 socket head cover screws holding the cover in place (Figure 7). Remove the cover from the pump and wipe the inside surface with a dry, clean rag. The sight glass is more difﬁcult to clean. Try pouring in some solvent and using a pipe cleaner.
Next, remove the oil deﬂector which is held in place with a socket head screw (Figure 8). Wipe with a clean, dry rag. If needed, a wire brush can be used to clean any discoloration to metal parts (this will not affect the pump’s performance once the cleaning is complete). Remove the cover seal and clean cover seal (Figure 9). Wipe the outside of the cartridge’s surfaces with a clean, dry rag. A wire brush can be used on all surfaces including the exhaust valve and the intake relief valve. If they are discolored, they will still perform ﬁne.

DO NOT
Disturb the four cartridge bolts or the two smaller hex head screws (Figure 8). These are the setting screws.
If the intake relief valve set or the exhaust valve set is damaged and needs replacing, these items can be ordered through your local wholesaler under JB Part Number PR-18. It is best to replace after completing the cleaning of the cartridge. Pay attention to the order in which they are assembled for correct re-installation.
Reassemble the oil deﬂector (Figure 8). Clean out the channel for the cover seal with a clean, dry rag and smear some grease into the channel. This will help hold the cover seal in place for reinstallation of the cover. If the cover seal seems a little tight, stretch the seal a little and try again. All seals in JB pumps are designed to be reused. Reset the cover in place and replace the cover screws. Tighten in a crisscross pattern. Reattach feet or base.
Next, return the pump to its normal running position and place where you drained the oil. Open the drain valve, the top port on the intake, and the isolation valve. Have 1/3 cup of clean oil ready. Start the pump and pour the clean oil into the intake port. Let the pump run for 5 to 6 seconds and then shut the pump off. Drain the oil, tipping the pump forward (Figure 4) to completely drain. Close the drain valve and dispose of spent oil properly after the ﬂushing is complete.

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Now, ﬁll the pump to the proper oil level and allow the pump to run with the isolation valve closed for 3 or 4 minutes to warm up the oil. Check all o-ring caps for dirt and proper seal. Connect a vacuum gauge (JB recommends the DV- 22N, DV-41 or DV-40S) directly to the 1/4″ port on the intake tee (Figure 9). Do not use a charging line. Open the isolation valve.

DO NOT USE A CHARGING LINE
A charging line, especially a new line, will give you a higher micron reading because you are reading the environment inside the hose (Figure 12).
Figures 11 and 12 are the same, but (Figure 11) is a direct connection hook-up and (Figure 12) is a connection through a new charging line. Both hook-ups are allowed to run the same length of time, but (Figure 11) is at 20 microns while (Figure 12) is at 297. If left on, the charging line hook-up will come down in its micron reading, but it will take a much greater period of time. If the hose is cleaned out with alcohol and vacuumed for a long period of time, the micron reading will go lower.

ISOLATION VALVE
It is a quarter turn between on and off. There is no additional valve needed to isolate the system. When checking for pressure rise, slowly turn the handle counter-clockwise. The pause position is at 45 degrees and the valve is completely closed at 90 degrees (Figure 13).

USING CHARGING AND TESTING HOSES

FOR EVACUATION
If a leak is suspected: An evacuation/dehydration hook-up requires a leak- proof design in all of the components. Only soft copper tubing, pure rubber hoses, or ﬂexible metal hoses are absolutely vacuum tight. Charging hoses are designed for positive pressure. Even with the advanced technology of today’s hoses, permeation through the hose compound still exists (Figure 14).
If you have blanked-off your pump to check pressure rise and your hoses and connections are not leak-free, the atmosphere will permeate to the lower pressure in the hoses. Your reading will slowly rise and you will spend time looking for system leaks.

TESTING THE VACUUM PUMP’S ISOLATION VALVE

The easiest way to test the isolation valve for leakage is to turn the pump on with the isolation valve in the closed position.
Step 1: Connect a charging line to the center port of the manifold (Figure 15), and have the high side capped off and CLOSED and the low side capped off and OPENED
Step 2: Connect the charging line to the intake of the pump and wait. If, within 5 to 10 minutes, you do not see the low (compound) gauge going into inches of vacuum, there is no leak in the isolation valve.
What happens when a micron gauge is connected directly to the intake of a vacuum pump with an isolation valve is all related to the connections to, and including, the intake, the volume of what is being vacuumed, the depth of vacuum, and the length of time that the volume is in the deep vacuum.

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TESTING THE VACUUM PUMP’S ISOLATION VALVE (CONTINUED)
First, let’s look at the construction of JB’s isolation valve (Figure 16). This ﬁgure shows the isolation valve in the closed position. The brass ball is sandwiched between two Teﬂon seals, making a positive seal, with a solid brass surface blocking access to the intake chamber. The adapter nut on the top, outside of the pump, is where the intake ﬁtting is connected. It is sealed with Loctite and an o-ring. If this nut has not been disturbed, the chances of a leak are very minimal. The stem has a dual o-ring seal and, even if this leaked, with the isolation valve in the closed position there would be no effect on holding a vacuum. A leak at the stem would effect the depth of vacuum the pump could achieve.
With a micron gauge connected directly to the intake of the pump and vacuumed to 50 microns, closing the isolation valve will result in a rapid rise in pressure, almost to atmosphere. Look closely at the area around the isolation valve. Even though small, air is trapped in this area. When we begin to close the isolation valve, there is a position of the ball that allows this trapped air to enter the vacuum being created. On a large system, this small amount of air would not create a conspicuous change in microns. However, with almost no volume, the sudden introduction of air to this direct hook-up is obvious and would be displayed on a micron gauge. Refer to the previous page for the isolation valve positions. When the isolation valve is put in the pause position, this gives the cartridge (the pumping mechanism) access to the air trapped in this area and within a few seconds, that trapped air is removed.
Moving to the connections on the pump, the factory intake is loctited into place and each pump is tested for leaks. If this is not disturbed, the chances of a leak are virtually non-existent. Any leak would come from the connection at the port being used and to the connection to the system.
One of the most common errors with both the o-ring and the gasket couplers is the wrenching down of these couplers with a pair of pliers or channel locks (Figure 17). Please refer to our Principles of Deep Vacuum article. This article can be found at www.jbind.com under Product Support.

DO NOT
Wrench down on coupler (Figure 17).
The article, Principles of Deep Vacuum, shows there is a need for sealing with a vacuum tight o-ring (Figure 18). Gaskets, like those used in charging lines, are made for pressure. What wrenching of the coupler does is to smash the brass cup that holds the gasket or o-ring against the male ﬂare ﬁtting. This causes the brass cup to expand outward against the threads of the coupler and makes it tight to turn. This causes the o-ring to fall out of the cup that is holding the o-ring or gasket in place.
Another error seen is that technicians have a brass adapter ﬁtting on the intake of the pump with no copper gasket. The ﬁrst time you wrench the adapter into place, it might seal. But, as soon as you break the seal and re-tighten, there is a chance for a leak. The best hook-up that guarantees there are no leaks in the system is by using JB’s valve core removal tools (Figure 19).
Charging lines have been used for many years for the vacuum end of air conditioning and refrigeration servicing. Charging line use stretches back as far as when inches of Mercury (inHg) was the way measuring of a vacuum on a system was taught. A charging line hose can be vacuumed to 50 microns if it is clean. New environmental hoses, fresh off of the shelf, will only reach about 300 microns until they are cleaned out with alcohol and vacuumed out for a while. Why is this? First, the charging lines are mostly gaskets made for positive pressure. Second, they are permeated. See page 7 for how permeation occurs.
The only vacuum tight hose is a ﬂexible metal hose. Third, the compound of the hose inside will out-gas when under a vacuum until it is cleaned out, as discussed earlier.

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If you are used to using a compound gauge when testing for a leak or holding a vacuum, using a digital gauge will be a little tricky the ﬁrst time you use it. JB digital vacuum gauges will display microns jumping up and down in measure. You might think that the gauge is erratic or that there is a leak in the system. The reason for the changing microns is due to a whole other area of understanding the environment inside a system being vacuumed. We will discuss this event in the next section on Digital Micron Gauges.
To help show the difference of a digital and analog displays in microns, and a compound gauge display in inches of mercury (inHg) as it relates to their displays of vacuum, we need to hook them up. Take a compound gauge and a digital micron gauge, and an empty refrigerant tank. This hook-up is illustrated on the next page (Figure 20). This allows you to demonstrate the four components in holding a vacuum: the connections, the volume, the depth of vacuum, and the length of time that volume is in deep vacuum.
Link both gauges together by solid brass adapters and o-ring couplers and couple to the tank. The tank is connected by an o-ring coupler to one of the intake ports of the pump by way of braided metal hose with o-ring connections. Then, with the isolation valve in the open position, we can begin to vacuum this hook-up and watch the readings on the various gauges move into deep vacuum. Within seconds, the compound gauge’s needle should be nearing 27-29″ while the digital and analog gauge readings are still heading into deeper microns.
After the digital gauge reaches 500-600 microns, close the isolation valve. You will see the digital reading start a pretty rapid rise in micron readings. Notice that the compound gauge’s needle has not moved.
NOTE: If the compound gauge’s needle does move toward zero on the scale, you have an air leak in your connections. Open the isolation valve again and this time let the hook-up vacuum for 5 minutes. Then close the isolation valve again and watch. Open the isolation valve for about a minute, then move the valve to the pause position for about 5 seconds, then close the valve completely. This removes that trapped air around the isolation valve. You will still see a rise in pressure, but not as rapid. The readings will start to stabilize the longer this hook-up is allowed to vacuum down and use the pause position of the isolation valve the slower and lower the rise in pressure.
If you increase the volume of the cylinder and follow the same procedure, you will notice a slower and lower rise. If you watch your compound gauge, you will notice there is no movement.

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DIGITAL MICRON GAUGES

Inaccurate Readings
NOTE: For the JB digital vacuum gauges we have a stated accuracy that references AVERAGE accuracy. Thus, between 250 and 6000 microns the unit is +/-10% AVERAGE accuracy and between 50 to 250 microns it is +/-15% AVERAGE accuracy. This does not mean our gauge has a large accuracy discrepancy.
The term AVERAGE is an important part of this accuracy description. The number of increments displayed on the JB digital micron gauge between 50 and 250 microns are 97. Between 250 microns and 6000 microns, there are 232 increments. If you take a comparison reading between the JB digital vacuum gauges and the MKS Baratron master gauge at each of the increments displayed on the digital micron gauge the average accuracy would be +/-10% in one range and +/-15% the average in the other range. Also, the number of increments decrease from the lower micron readings to the higher micron readings.
For example, from 250 to 300 microns there are 16 increments, from 650-700 microns there are only 7 increments, between 1000 and 1050 there are 4 increments, and between 4000 and 4500 there are 4 increments. So at 650 to 700 microns the gauge has the ability to show 650-658-667-675-680-685-690-695. But at the micron range of 4000 to 4500, the gauge only displays 4125-4250-4375. This is important because when the system has an actual micron level of 4260, the digital micron gauge will show a reading of 4375 because the threshold for the lower value that the gauge displays, 4250, has not been reached. Once that threshold has been reached, the gauge will display that lower value of 4250. Because the readings in these higher micron ranges only need to show the movement through them , the difference between 4375 and 4250 is of no concern in reaching the ultimate vacuum desired. This is why the JB digital vacuum gauges are designed with the most increments in range that are going to be the most critical in determining if the system is ready for charging.
If you understand the size of a micron, then small differences in ranges is nothing to be concerned about.

For instance:

MICRON RANGE	MICRON DIFFERENCE
60-100	10-20
200-350	30-40
500-700	50-60
900-1500	80-100
2500-4000	200-300

When a JB digital vacuum gauge comes in for repair, it is compared to a secured system set up with a N.I.S.T. traceable master gauge. Usually starting around (1) 60-100 microns, then (2)200-350 microns, then (3)500-700 microns, then (4) 900-1000 microns. These ranges of vacuum are the most common that people work with to determine deep vacuum.

Erratic Readings
There are three issues involved in the discussion of erratic readings. One is the understanding of the gauge’s displayed micron increments that was just discussed. The second involves the re-sampling period. The third is the environment inside the system being evacuated. When JB digital vacuum gauges are turned on, the display will show “JB” and the sensor will start to calculate the ambient temperature.
Once the gauge has ﬁnished calculating the ambient temperature, it will display “OOOOOO” indicating over-range if it is not introduced to a vacuum level of 100,000 microns or less.
There is also instability inside the system being evacuated. Liquids (moisture) are being turned into gases and molecules are moving at different rates of collision with other molecules at different areas of the system at different times between the high and low sides. The deeper the vacuum, the further apart these molecules get and the less rubbing together. This decrease in friction changes the temperature around those molecules and the JB digital vacuum gauge is registering those changes by way of temperature changes at the sensor’s ﬁlament. The environment inside a system being evacuated has more instability at higher micron levels (9000 to 1000) than at lower micron levels (700 to 50). This is evidenced when testing JB digital vacuum gauges at the different ranges on a secured system. When in the range of 4000 microns, the gauge display will show 4000 microns, then jump to 4350, then regress to 3875, then jump back to 4000. After being blanked-off at this level for a period of time, the changing back and forth will level out to changing from the incremental display of 4000 microns and the next incremental display up or down of either 4125 or 3875. But, when in a deeper vacuum like 350 microns, the changes in display on increments may be from 350 to 357 and back down to 350 or even 329 as the environment inside the system becomes more stable and the time period of these changes will be less as most of the out gassing has been done.

Breaking Vacuum
Breaking vacuum prior to shut down is important on larger CFM pumps. This procedure relieves the stress on the ﬂexible coupler on the next start up. When a pump is shut down without breaking vacuum, the oil in the cover is pulled back into the cartridge and intake chamber of the pump trying to ﬁll the vacuum there. Upon the next start up the pump has to clear the oil out of these areas and all the stress is on the ﬂexible part of the coupler, especially if the oil is cold. You can see this occurring by shutting down the pump and watching the sight glass. The oil will start to drop down and appears as if you are low on oil. Then when you restart the pump the oil level returns to normal.
To break vacuum on the PLATINUM® vacuum pumps, simply close the isolation valve with the pump still running and open the gas ballast valve all the way and allow the pump to run 2-3 seconds with the gas ballast valve opened and then shut pump off and close the valve.
To break vacuum on the Eliminator vacuum pumps. After blanking off at the manifold or an external isolation valve, if used, crack open the unused intake port on the pump and allow to run 2-3 seconds and shut pump off.

TROUBLESHOOTING AND REPAIR

SYMPTOM	POSSIBLE CAUSE(S)	CORRECTIVE ACTION
Pump hard to start	A Power cord not plugged in securely B Motor switch

not on
C Pump temperature below 30°F D Inconsistent line voltage
E Pump has not been shut down properly F Low Battery (DV-142-FLEX or DV-85-FLEX)| A Plug power cord in securely
B Turn motor switch to ON position
C Warm up pump to 30°F and turn motor switch on D Line voltage must be within 10% of 115v
E Follow proper start up and shut down procedures F Check battery charge; re- charge if necessary
Step 1: Remove 1/4″ cap
Step 2: Move blank-off valve to OPEN position
Step 3: Turn pump on
Step 4: Run 2 to 3 seconds and close blank-off valve
PROPER START UP AND SHUT DOWN PROCEDURES :
Step 1: Close blank-off valve Step 2: Open gas ballast valve Step 3: Run 2 to 3 seconds Step 4: Shut pump off
Step 5: Close gas ballast valve
NOTE: See previously discussed topic Breaking Vacuum
Pump won’t pull deep vacuum In order for your pump to pull to a near perfect vacuum, oil must be clean and moisture-free throughout evacuation| A Contaminated oil B Oil level too low
C Air leak in system being evacuated
D Pump inlet fittings missing or not tightened E Coupler slipping
F Missing or damaged seals or o-rings| A Change oil B Add oil
C Locate and repair leak(s) D Clean or replace o-ring
E Tighten coupler set screws to flats of cartridge and motor F Replace damaged seals or o-rings
Step 1: With isolation valve closed, start pump Oil level should be to the top of the oil level line embossed on the front of the pump’s cover Just a teaspoon low can affect the ultimate vacuum
Step 2: Flush pump and refill with fresh oil See Cleaning and Testing Pump on page 4 for review
Step 3: Check all connections to pump and system for damaged or missing o-rings If brass adapters are being used, make sure copper gaskets are in place
Oil drips from point where shaft enters the pump housing| Damaged shaft seal| Replace shaft seal
Pump shuts down and will not start| A Thermal overload may be open B Low Battery (DV-142-FLEX or
DV-85-FLEX)| A. Step 1: Disconnect pump from system
Step 2: Wait approximately 15 minutes for motor to cool
Step 3: Turn pump on
Step 4: If it cycles off again, return for repair
B. Check battery charge; recharge if necessary
Pump cycles on and off from a completely cold start and then runs smoothly| A Oil backed up into cartridge and was being cleared out
B Pump has not been shutdown properly| Step 1: Remove 1/4″ cap
Step 2: Turn pump on
Motor just hums| If pump has been dropped, the armature in motor may be out of alignment with the motor’s bell housing| Step 1: Set pump on bench with motor standing up (Figure 3 of this booklet)
Step 2: Loosen the four motor bolts
Step 3: Shake motor and re-tighten motor bolts
Step 4: Start pump If this doesn’t work, the pump most likely will need to be sent in for repair
Motor runs, but no suction| A Flexible coupler is either broken or loose| Step 1: Set pump on bench with motor standing up
Step 2: Look between motor and pump housing from the bottom to see if the flexible part of the coupler is split or broken If it is broken, see Flexible Coupler section of this booklet If the coupler is not broken, the coupler may be spinning on either the shaft to motor or cartridge
Step 3: Go to www.jbind.com and on the toolbar go to Product Support Select instruction sheets from the drop down menu and go to cartridge replacement instructions These instructions are good for replacing: flexible couplers, motors, shaft seals, and cartridges

Repair parts for DV-42N Through DV-285N SERIES

$JB-INDUSTRIES-DV-142-FLEX-Platinum-2-Stage-Direct-Drive-Vacuum- Pump-$19$$

Repair parts can be ordered from your local JB wholesaler.

When ordering please provide the following information:

Model number
Serial number
Part number and description

| PLATINUM ® SERIES **REPAIR ****PARTS ****– ****ALL ****MODELS
---|---
REF.NO.| PART NO.| DESCRIPTION
1| PR- 1| Sight glass
2| PR- 2| Drain valve
6| PR- 211| Trap o-ring, gas ballast
7| PR- 3| Shaft seal
8| PR- 315| Trap o-ring, intake
9| PR- 4| Rubber foot and screw assembly – 1 per package (Prior to 2006)
10| PR- 78| Angled intake tee with caps
PR- 76| Intake tee cross with caps (models prior to 2020)
11| NFT5- 4| 1/4″ O-ring, cap
12| NFT5- 6| 3/8″ O-ring, cap
NFT5- 8| 1/2″ O-ring, cap
14| PR- 209| Plastic isolation valve handle and screw w/stem, O-rings and retainer (not interchangeable w/PR-210)
15| PR- 208| Flexible coupler 1-1/2″(Start of 1995) 2-1/2″ (Prior to 12/1994)
PR- 308| Flexible section only 7/8″; use w/PR-208 flexible coupler
PR- 6| Flexible coupler 2-1/4″
PR- 77*| 1-5/8″ Middle section; use w/PR-6 flexible coupler
16| PR- 42| Motor foot w/screw (prior to 2006)
17| PR- 59| Base foot
19| PR- 31| Line cord (Marathon motor) old style
PR- 58| Line cord (Emerson motor) new style
20| PR- 54| Rocker switch w/wire leads (Emerson) models since 2004
---|---|---
21| PR- 607| FLEX motor
PR- 206| 1/2 Hp, 115v, 60 Hz Motor w/line cord and switch
PR- 207| 1/2 Hp, 115/230v, 50/60 Hz Dual Voltage Motor (not shown)
PR- 307| 1/2 Hp, 115/230v, 50/60 Hz Spark Proof Motor (not shown)
23| PR- 7| Gas ballast valve w/o-ring
24| P90009| O-ring, gas ballast valve
25| PR- 40| Splash guard and screw
(excludes 3 CFM manufactured before 1/01)
26| PR- 75| Cushioned handle w/lift ring 1/2″ NPT and DV-EP-8 as of 2008
PR- 205| Cushioned handle 3/8″ NPT
PR- 605| Cushioned handle w/lift ring FLEX
27| PR- 22| Oil fill plug w/o-ring
28| PR- 56| Adapter nut w/nut o-ring

30

Emerson® is a registered trademark of US Motors. Marathon® is a registered trademark of Marathon Electric.

*Coat with thread sealant when replacing.

PLATINUM ® SERIES REPAIR PARTS – ****MANUFACTURED AFTER JANUARY 2001

Flexible Couplers

Flexible couplers are a three part assembly (Figure 21). Two metal hubs that look like gears and a ﬂexible middle section. The one hub is attached to the shaft of the motor and the other is attached to the shaft of the cartridge. NOTE: The color of the ﬂexible middle section can be black, yellow or green. The middle sections of the PR-208 and the PR-6 can be ordered separately. The PR-208 has a “D” bore in the metal hubs to prevent hubs from spinning on shafts.
1994 and older = PR-6
1995 and newer (including BEAST) = PR-208
Prior to 2001 -250 models after serial#0198 and dual pumps prior to 1988 = PR-53

Replacing Coupler (Motor Removed)
Coat setscrew threads with removable thread sealant. Align coupler setscrew with ﬂat surface of cartridge shaft. Tighten screw so coupler slides on to shaft but stops at the bottom of the ﬂat. Tighten until screw head is ﬂush with coupler surface (approx. 40 in-lbs).

$JB-INDUSTRIES-DV-142-FLEX-Platinum-2-Stage-Direct-Drive-Vacuum- Pump-$21$$

Sight Glass Repair

Step 1: With cover off of the pump, lay on two blocks of wood. Pop out the sight glass using a broom handle or other object as a punch. For DV-85 series, DV-142 series, or DV-200 series use a 1″ diameter punch (Figure 22).

Step 2: Clean the surface with acetone or nail polish remover. Put loctite on the inside surface of the hole.
Step 3: Install the new sight glass from the outside. The hole position does not matter with the new style sight glass.
Step 4: With the wood block covering the sight glass, tap the sight glass into place. Replace the cover on the pump.

Tethered Safety Exhaust Caps
Red tethered safety exhaust caps for handles help prevent oil leakage out handles if pump is overturned during transportation.
DV-EP-6 3/8″ NPT
DV-EP-8 1/2″ NPT

Cartridge Valve Repair Kit

$JB-INDUSTRIES-DV-142-FLEX-Platinum-2-Stage-Direct-Drive-Vacuum- Pump-$25$$

Cord Options

$JB-INDUSTRIES-DV-142-FLEX-Platinum-2-Stage-Direct-Drive-Vacuum- Pump-$26$$

US Cord
PR-110 (110v)
PR-230 (230v)
EU Cord PR-136
UK Cord PR-236
AU Cord PR-336
BR Cord PR-436

CROSS REFERENCE OF VACUUM MEASUREMENTS

Boiling temp. of water at converted pressures

**TEMP. F°| ****MICRONS| INCHES OF HG VACUUM| PRESSURE POUNDS SQ. IN.**
---|---|---|---
212| 759,968| 0.00| 14.696
205| 535,000| 4.92| 12.279
194| 525,526| 9.23| 10.162
176| 355,092| 15.94| 6.866
158| 233,680| 20.72| 4.519
140| 149,352| 24.04| 2.888
122| 92,456| 26.28| 1.788
104| 55,118| 27.75| 1.066
86| 31,750| 28.67| 0.614
80| 25,400| 28.92| 0.491
76| 22,860| 29.02| 0.442
72| 20,320| 29.12| 0.393
69| 17,780| 29.22| 0.344
64| 15,240| 29.32| 0.295
59| 12,700| 29.42| 0.246
53| 10,160| 29.52| 0.196
45| 7,620| 29.62| 0.147
32| 4,572| 29.74| 0.088
21| 2,540| 29.82| 0.049
6| 1,270| 29.87| 0.0245
-24| 254| 29.91| 0.0049
-35| 127| 29.915| 0.00245
-60| 25.4| 29.919| 0.00049
-70| 12.7| 29.9195| 0.00024
-90| 2.5| 29.9199| 0.00005
—| 0.00| 29.92| 0.00000

RETURN FOR REPAIR
In the event your pump requires repair, please contact JB Customer Service Department to obtain a Return Goods Authorization (RGA) number. Ensure that all returned products are packed to avoid any damage in shipment. Paperwork should be placed in a separate plastic bag and should include JB’s assigned RGA number, a description of the problem and any customer assigned repair or purchase order number, if applicable.

Contact Customer Service for RGA number:
800.323.0811 Toll
800.552.5593 Toll Fax
Customers in Alaska, Arizona, California, Idaho, Montana, Nevada, Oregon, Utah, and Washington have the option of sending vacuum pump repairs to JB or Merced.

JB Industries
RGA#_____
601 N. Farnsworth Ave.
Aurora, IL 60505
630.851.9444 Tel
630.851.9448 Fax

Merced AC Equipment Service
RGA#_____
805 S. Fremont
Alhambra, CA 91803
626.293.5710 Tel
626.289.1961 Fax

ACCESSORIES

PLATINUM ® FLEX ACCESSORIES

PART NO.| DESCRIPTION
DV-BP-BAT| PLATINUM® FLEX Lithium-ion Battery
DV-BP-CHRG| PLATINUM® FLEX Lithium-ion Battery Charger
DV-BP-AC| PLATINUM® FLEX AC Adapter
MICRON GAUGES
SH- 35N| Wireless Digital Gauge for Superheat and Subcooling
DV- 40S| Wireless Digital Vacuum Gauge
DV- 41| SUPERNOVA® Digital Vacuum Gauge
DV- 22N| Digital Vacuum Gauge
VACUUM PUMP OIL
DVO- 1| BLACK GOLD Vacuum Pump Oil (Pint; Case of 24)
DVO- 12| BLACK GOLD Vacuum Pump Oil (Quart; Case of 12)
DVO- 24| BLACK GOLD Vacuum Pump Oil (Gallon; Case of 6)
OIL CADDY
DV- T1| The TANK Vacuum Pump Oil Caddy
OIL MIST FILTER
DV- F6| 3/8″ Oil mist filter (models prior to 2011)
DV- F8| 1/2″ Oil mist filter (Models after 2011)
SWIVEL COUPLERS
D10244| 1/4″ Female swivel coupler
D10266| 3/8″ Female swivel coupler
SHUT-OFF VALVE
D10162| 1/4″ Female QC x 1/4″ flare
QUICK COUPLERS
QC- E64| 3/8″ QC x 1/4″ SAE elbow
QC- S64| 3/8″ QC x 1/4″ SAE straight
O- RINGS
P90009| 1/4″ Replacement o-ring (10 pack)
P90012| 3/8″ Replacement o-ring (10 pack)
EVACUATION TOOLS
VL- 100| VELOCITY Rapid Evacuation kit w/hose and valve core removal tool
VL- 206| ACCELERATOR 3/8″ Rapid Evacuation kit; 2 CL264-48 hoses, A32525N, A32525SV and Y connector
VL- 208| ACCELERATOR 1/2″ Rapid Evacuation kit; 2 CL264-48 hoses, A32525N, A32525SV and Y connector
A32525N| Vacuum rated valve core removal tool
DV- 29| Vacuum gauge blank-off test kit

WARRANTY
PLATINUM® Premium, Dual Voltage, and Spark-Proof pumps are warrantied against defects in materials and workmanship for two years OTC—not changing oil will void warranty.
PLATINUM® FLEX pump is warranted against defects in materials and workmanship for two years OTC—not changing oil will void warranty. PLATINUM® FLEX Battery, Charger and AC Adapter are warrantied against defects in materials and workmanship for one year OTC.
JB products are guaranteed when used in accordance with our guidelines and recommendations. Warranty is limited to the repair, replacement, or credit at invoice price, (our option) of products which in our opinion are defective due to workmanship and/or materials. In no case will we allow charges for labor, expense or consequential damage. Repairs performed on items out of warranty will be invoiced on a nominal basis; contact wholesaler for details. Product Warranty Registration, Limited Warranty and OTC Warranty are available online at www.jbind.com.
JB INDUSTRIES • PLATINUM OPERATING MANUAL • 800.323.0811 • SALES@JBIND.COM • JBIND.COM
©2020 JB Industries, Inc. Printed in the USA