CHAPTER 2 DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE INSTRUCTIONS

TM 10-3930-631-34

CHAPTER 2

DIRECT SUPPORT AND GENERAL SUPPORT

MAINTENANCE INSTRUCTIONS

Section I. REPAIR PARTS, SPECIAL TOOLS AND EQUIPMENT

2-1. Repair Parts and Equipment

2-2. Special Tools

Repair parts and equipment are listed and

covering direct and general support maintenance

There are no special tools and equipment issued

(TM 10-3930-631-34P) for this equipment.

with or authorized for the fork lift trucks.

Section II. TROUBLESHOOTING

malfunction, test or inspection and corrective action for

2-3. General

those that may occur. Each malfunction is followed by a

a. This section contains troubleshooting in-

list of tests or inspections which will help you to

formation for locating and correcting most of the

determine probable causes and corrective actions to

operating troubles which may develop in the fork lift

take. You should per- form the tests/inspections and

truck.

corrective actions in the order listed.

b. This manual cannot list all malfunctions that may

Note

occur, nor all tests or inspection and corrective actions.

Before you use this table, be sure you have all

If a malfunction is not listed or is not corrected by listed

the applicable operating checks.

corrective actions, notify performed

your supervisor.

2-4. Troubleshooting Table

The troubleshooting table, Table 2-1, lists the

Table 2-1. Troubleshooting

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. NO POWER TO DRIVE OR PUMP MOTORS.

Step 1. Check for defective battery receptacle.

Test receptacle for continuity and inspect contacts for good condition. Repair or replace defective receptacle.

Step 2. Check for defective wiring harness.

Test harness for continuity. Test and inspect all contacts. Check for broken or frayed wires. Repair or replace

defective harness.

Step 3. Check for open or defective thermal relay.

Test thermal relay and replace if defective.

Step 4. Check for damaged or defective drive motor.

Repair or replace damaged or defective motor.

Step 5. Check for damaged or defective accelerator control.

Repair damaged or defective acceleration control.

Step 6. Check for damaged or defective forward and reverse switch.

Repair or replace damaged or defective forward and reverse switch.

Step 7. Check operation of forward and reverse contactors.

Repair or replace contactors if not operating properly.

Step 8. Check operation of electrical control components.

Repair or replace electrical control components if not operating properly.

Step 9. Check for damaged or defective emergency cutout switch or contactor.

Repair or replace damaged or defective switch or contactor.

2-1