Service manual

ADC-44/-66

Preventive Maintenance Schedule

Three General areas must be inspected

1) Sequence switch mechanism in tray track

2) Water control mechanism

3) Conveyor system

SEQUENCE SWITCH MECHANISM

1) Free moving

2) 1/16” clearance on pivot bolts

3) Magnet adjustment is approximately 1/16” from tank ﬂ oor

4) Pump motor will activate only after 1/8-1/4” movement of sequence bar. This will indicate

that the adjustment of the reed switch is correct

WATER CONTROL MECHANISM

1) Check for free movement of suspended rod and weight

2) Suspended weight is free moving and clear

3) Lever is free moving and has 1/16” clearance from box or attaching locknut. Operate the

lever 10 or 20 times with the tanks full, it should not stick on

“ﬁ ll.” If it does stick, the problem will be interference with the rod, weight, or the switch button

spring may be too weak.

CONVEYOR SYSTEM

1) Cam bearing is well-lubricated and rotates freely (marine grade grease)

2) No worn or sloppy parts, rocker arm free play is only 1/8”, greater than this

means the rubbing blocks are worn

3) All dogs are free moving

4) No chlorine chemical leaks on or near conveyor motor

Bolt table to the machine to avoid leaks under table lip

NORMAL CHECKS

1) Check for bent or damaged parts

2) Screens and trays are all in good order

3) Drains are clear

4) Dispenser is functional and adjusted w/no leaks

5) Curtains are in place and clean

6) Correct leaks to avoid damaged motors

7) Spray patterns are consistent and typical

8) Check racks (broken ladders or swaybacks cause high costs)

9) Lime build-up on any conveyor is a problem

ELECTRICAL CHECKS (by qualiﬁ ed electrical technician)

1) Machine’s total amp draw: 52 amps at 3Ø, with everything working

2) Wash heater: 30 amps

3) Wash Motor: 8 amps

4) Rinse Heater: 6 amps

5) Rinse Motor or Conveyor Motor: 0.5-1.0 amps

6) Control Circuit: 0.65 amps