AVANTCO MX20 Gear Driven 20 Qt. Commercial Mixer User Manual

User Manual

Models: MX20
Shifting gears while this unit is running will void the warranty.
Please read and keep these instructions. Indoor use only.
www.AvantcoEquipment.com

Parts Overview

Notes:

• Do not hose down the mixer.
• Do not operate the mixer with wet hands.
• Unlpug mixer from electrical supply prior to any maintenance or repairs.

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Standard Accessories

NOTES:

• Any agitator is easily installed by simply raising it onto the mixing axle, and rotating it clockwise on the shaft until it locks into place. To remove, raise the agitator on the shaft until it clears the lock and then rotate counter-clockwise and lower.
• All of the accessories are precisely fitted to the bowl, have rounded corners, and are easily removable for cleaning.

Operation Instructions

Please ensure that your power supply matches your machine
For changing the speed* Please stop the machine first before changing speed in order to avoid damage to the gearbox. Also, make sure that the bowl is in a fully lifted position and the guard is closed.

• Slow Speed is the middle, dough hook set. The knob will be facing forward.
• Medium Speed is the bottom, flat beater set. The knob will be straight down.
• High Speed is the top, whisk setting. The knob will be straight up.

Mixing: Always use the correct attachment for the job.
A.Wisk : Suitable for mixing liquids and soft ingredients, can work at all speeds. Do not run for more than 15 minutes.
B. Flat Beater : Suitable for mixing dry ingredients, can work at low & medium speeds only. Do not use it at high speed. Do not run for more than 15 minutes.
C. Dough Hook : Suitable for mixing dough, can work in low & medium speeds only. Do not use in high speed, and do not run for more than 20 minutes Absorption ratio must be more than 50%. Refer to mixer capacity chart.

Mixer Capacity Chart

When mixing dough ( pizza, bread, or bagels), check your “AR” absorption ratio – water weight divided by flour weight. Above capacities are based on 12% flour moisture at 70°F water temperature. If high gluten flour is used, reduce above dough batch size by 10%.

Example: If recipe calls for 5 lb. of water and 10 lb. of flour, then 5 divided by 10 = 0.50 x 100 = 50 %AR.

• 2nd Speed should never be used on mixtures with less than 50% AR.

• Do not use attachments on hub while mixing.
  When calculating the correct size mixer for your application, here are some helpful weights & measures:

• 8.3 lb. = 1 gallon of water – 2.08 lb. = 1 Quart.

Cleaning

WARNING: DISCONNECT THE MACHINE FROM THE POWER SOURCE BEFORE CLEANING
All new mixer bowls and accessories including whips, beaters, and dough hooks should be properly washed before use.
Wash with hot water and a mild soap solution and then rinse off with either a mild vinegar or soda solution and then rinse again with clean water. It is highly recommended this cleaning procedure is followed for bowls and accessories prior to whipping egg whites or whole eggs. The mixer should be cleaned daily with a clean damp cloth.
If the unit has not been used for some time, it is recommended that the procedure above is followed before mixer use.
It is important that the rear bowl lift guides are greased every three months to prevent corrosion.

Troubleshooting

slideway and lubricate
 The motor is overheated
and speed is down| The voltage is not enough, or
incorrect speed|  Check the voltage or use
lower speed
 Noise  and overheating| Poor lubrication|  Add or change lubrication
 Mixer touches bowl| The mixing device or bowl deformed|  Repair or change the bowl  or mixing device

TRANSMISSION CASE

FIGURE 1

ITEM| DESCRIPTION|

QTY

---|---|---
1| Screw M645| 1
2| Cover| 1
3| Screw M58| 4
4| Cover| 1
5| Bearing 6201| 2
6| Screw M625| 4
7| End Cover| 1
8| Body| 1
9| Screw M58| 3
10| Cover| 1
11| Bearing 6003| 1
12| Rear cover| 1
NOTES:

•   The factory has provided superior lubricant for several years of use. If the mixer is repaired please ensure that the service technician replaces any lubricant lost or removed.
•  Please lubricate bearings before refitting bearing covers.

PLANETARY SHAFT ASSEMBLY

ITEM

| DESCRIPTION|

QTY

---|---|---
1| Baffle| 1
2| Roller| 4
3| Spring| 8
4| Engager| 1
5| Gear Ring| 1
6| Dividing Ring| 1
7| Joint Gear I| 1
8| Bearing Ring| 1
9| Joint| 1
10| Bearing Ring| 1
11| Joint Gear I| 1
12| Ring| 1
13| Bearing 6205| 1
14| Oil Seal Pd304510| 1
15| Sleeve| 1
16| Axle| 1
17| Key 614| 1
18| Key 535| 2
19| Key 6*30| 1
20| Bearing| 1
NOTES:
•  Be sure to install the correct position (see Figure 2-1) and lubricate all of the pins in the sleeve drive when reassembling.
•  Joint (9) must always be raised and lowered smoothly. Be sure joint sleeve as shown in Figure 2-2
•   Check the oil seal (14), if serious oil leaks from the drip cup.

TRANSMISSION SHAFT

ITEM| DESCRIPTION|

QTY

---|---|---
1| Bearing| 1
2| Transmission Axle| 1
3| Key 511| 1
4| Key 511| 1
5| Gear| 1
6| Stop Ring| 1
7| Gear| 1
8| Stop Ring| 1
9| Bearing 6201| 1
NOTES:
•  At the center in the shaft unit. To the above gear is the gear shaft and gear shaft I (see figure 3-1)
•  C-type stop ring (6/8) has to be fixed when reassembling.
•  Be sure that the keys are inserted for each gear.

WORM GEAR SHAFT ASSEMBLY

ITEM| DESCRIPTION|

QTY

---|---|---
1| Bearing 6201| 1
2| Gear Axle| 1
3| Key 5*14| 1
4| Gear| 1
5| Stop Ring| 1
6| Bearing 6201| 4
NOTES:
•  C-Type stop ring (5) has to be fixed when reassembling.

MOTOR UNIT

ITEM| DESCRIPTION|

QTY

---|---|---
1| Stop Ring| 1
2| Worm Gear| 1
3| Oil Seal| 1
4| Bearing 6203| 1
5| Key 4*22| 1
6| Axle| 1
7| Rotor| 1
8| Governor| 1
9| Governor Plate| 1
10| Bearing 6203| 1
11| Bearing Cover| 1
12| Fan| 1
NOTES:
•  If the motor does not work, first verify the power source and connection. Next, check for damaged or faulty wiring or connections inside the mixer. A faulty motor may be the result of incorrect voltage, broken wires, or a defective cen- centrifugal governor. Motor damage may also be caused by bowel overload during mixing.
•   Motor set includes motor axle (6), rotor (7), and stator.
•    Figure 5-1 is component system diagrams of motor.

SHIFTING MECHANISM

ITEM| DESCRIPTION|

QTY

---|---|---
1| Axle| 1
2| Nut| 1
3| Spring| 1
4| Shaft| 1
5| Fork| 1
6| Pin 320| 1
7| Eccentricity Knot| 1
8| Steel Ball| 3
9| Speed Spring| 3
10| Speed Block| 1
11| Screw M510| 1
12| Shaft| 1
NOTES:

•  The speed selector/shifting mechanism is designed for simplicity and reliability. It features three mixing speeds.
•  Apply sealant to the shift selector assembly when installing.
•   Speed selection is made by aligning the pointer of the shift handle to the required action.
i.e. Whisk for eggs & cream etc, Paddle for batter Hook for dough
Important: Stop the mixer before changing speed.

STAND & BOWL LIFT UNIT

ITEM| DESCRIPTION|

QTY

---|---|---
1| Bowl Support| 1
2| Columns| 1
3| Slide| 1
4| Plate| 1
5| Gear| 1
6| Support Seat| 1
7| Capacitor Board| 1
8| Capacitor 200uF| 1
9| Nut M10| 3
10| Spring| 1
11| Spiral| 1
12| Bowl Lift Support| 1
13| Handwheel| 1
14| Nut M10| 1
15| Handle| 1
16| Handle Screw| 1
17| Machine Seat| 1
18| Limit Switch of Safety Guard| 1
19| Fluctuate Safety Switch| 1
20| Overload Protection Switch| 1
21| AC Contact Device| 1
22| AC Contact Device Box| 1

BOWL LIFT UNIT

FIGURE 8

ITEM| DESCRIPTION|

QTY

---|---|---
1| Lifting Bar| 1
2| Cotton Pin 330| 1
3| NutM10| 3
4| Flat Washer| 2
5| Compression Spring| 1
6| Little Knot| 1
7| Lifting Handle Bracket| 1
8| Flat Washer| 1
9| Flange Knot| 1
10| Screw M625| 1
11| Key 5*20| 1
12| Bowl Lift Handle| 1

PLANETARY ASSEMBLY

ITEM| DESCRIPTION|

QTY

---|---|---
1| Screw M645| 6
2| Turning Plate| 1
3| Ring| 1
4| Nut M201.5| 1
5| Safety Guard| 1
6| Inner Gear| 1
7| Screw M815| 1
8| Planetary Gear| 1
9| Bearing 6203| 1
10| Bearing 6204| 1
11| Oil SealPd255010| 1
12| Key 518| 1
13| Mixing Axle| 1
14| Pin| 1

Electrical Diagram

KO-ELECTROMAGNETIC SWITCH

K1-SAFETY COVERING SWITCH
K2-FLUCTUATE SAFETY SWITCH
K3-OVERLOAD PROTECTION WATCH
K-SWITCH
C-CAPACITOR
M-MOTOR

177MX20 SPECIFICATIONS

02/2022
www.AvantcoEquipment.com

References

• Avantco Equipment

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