American Dish Service ADC-44 Rinse Pump Motor Instruction Manual

: June 7, 2024
: American Dish Service

Table of Contents

American Dish Service ADC-44 Rinse Pump Motor
Product Information
Product Usage Instructions
Installation
Electrical Power
Contact Information
References
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American Dish Service ADC-44 Rinse Pump Motor

Product Information

Specifications:

Rinse Pump Motors: 1/3hp
Auxiliary Pump Shaft: 2.38″ long
Motor Shaft Distance: .498″ from the flat of the motor endbell
Seal: Ceramic and black graphite halves
Gasket: 0.0625″ thick

Product Usage Instructions

Adjusting Auxiliary Pump Shaft Height:
Use an Allen wrench to tighten the set screw on the auxiliary pump shaft to the keyed motor shaft. Adjust the shaft to be 2.38″ long and positioned at .498″ from the flat of the motor endbell.
Attaching Pump Housing:
Attach the pump housing (282-6307) to the motor after adjusting the auxiliary pump shaft.
Installing Seal:
Place the ceramic half of the seal in the housing, lubricate with soap, and press it in. Insert the black graphite half on the shaft, lubricate the inside of the black rubber half, and press until it touches the ceramic half.
Installing Impeller:
Twist the impeller to the right until the hand is tight. Secure it with the bolt and washer (098-1443, 098-2413) at the end of the shaft.
Attaching Pump Cover:
Attach the pump to the pump cover using a gasket (289-6609) to seal. Ensure the impeller stands off the pump cover’s inner face at approximately 0.0625″.

FAQ:

Q: What should I do if the ceramic portion of the seal breaks?
A: If the ceramic portion breaks, carefully remove any debris, replace the broken parts, and ensure proper lubrication during reassembly to prevent damage.
Q: How do I know if the pump is correctly installed?
A: The pump should operate smoothly without unusual noises or leaks once installed correctly. Refer to the manual for troubleshooting tips if issues persist.

Installation

The rinse pump (291-1003 3-ph) and (291-1007 single-ph) 1/3hp motors use an auxiliary pump shaft (284-6163) that attaches to the keyed motor shaft. It is held in place by a set screw which tightens into the key using an Allen wrench. The shaft must be adjusted to the proper height on the motor for the pump to work correctly. The auxiliary shaft is 2.38” long. The large boss on the end of the aux shaft must be tightened to the motor shaft at .498” from the flat of the motor end bell.

At the factory, a machined gauge is used to set up the distance.

In the field, a gauge can be made by cutting a template from cardboard and using it to mark the shaft.

Move the shaft towards the motor until it covers the mark.

Now with the aux shaft attached, place the pump housing (282-6307) to the motor.

Then place the ceramic half of the seal in the housing, use soap to lubricate and press into the bottom. The groove side will face down or towards the motor side.

Place the black graphite half on the shaft and press until it is touching the white ceramic half. Use soap to lubricate the inside of the black rubber half. Be careful with this operation, the ceramic portion is glass and can break when blows are laid against parts of the pump.

Then twist the impeller to the right as looked at in this picture, when it sits hand tight, place the secure bolt and washer (098-1443, 098-2413) in the end of the shaft and tighten.
The pump is now ready to attach to the pump cover using a gasket (289-6609) to seal. The impeller should stand off the pump cover’s inner face approx 0.0625”

Electrical Power

When applying power to a new 3-phase motor for the first time, there is a 50/50 chance of the rotation being correct. Looking at the picture of the impeller above, the correct rotation from this view is counter-clockwise or turning to the left. I know it looks like it should go the other direction but that is incorrect. If the motor is spinning to the right there will be little or no spray out of the upper arm. The correct spray pattern is fan sprays from the top and lower sprays raised about 4-6” above the arm. Switch any two of the three wires going to the motor to reverse rotation. Single-phase has no rotational issue.