MOTORS ( ELECTRICAL 17/19. - CONTACTORS/CONTROLS

11. During speed range operation, apply the brakes with light and heavy pedal pressure. Check for noises or virbrations which may indicate the need for inspection or repair. The brake pedal action must not feel soft or continue to go down after heavy pedal pressure is applied.

12. Turn hand wheel fully r truck keeps "creeping". unusual noises. As you wheel from 43" to 47", ile ght and left wh Listen for any turn the caster he inner drive motor should turn off. The truck is then driven by the outer motor only. If inner ,mot.or doesn't turn off, refer to GROUP 13, Se.ction 6.

NOTE Do steps 13 and 14 with no load and then with a capacity load.

13.. Raise a capacity load just high enough to clear the floor. Tilt the load fully back- ward and fully forward. Watch for any jerking or binding while tilting load. Tilt load fully back and watch upright rails at cylinder mounts. Make sure both cylin- ders bottom out at the same time. If one pulls in farther than the other, the upright will be twisted and adjustment is needed at tilt cyli,nder. Refer to GROUP 32, Section 1.

14. With upright tilted slightly back, raise a capacity load to maximum fork height (if overhead clearance allows) and then lower it. Watch for excess looseness or binding as upright goes up and down. In case of either problem, the upright rollers must be adjusted. Refer to Overhaul Manual OH-500, GROUP 34, Section 1. Fig. 19502

Fig. 84M478

Fig. 19438

Fig. 19439

15. Remove the capacity load and test the emergency bat_tery disconnect. Pulling up on the handle will disconnect the battery cable, disconnecting power from the truck. Release the handle and turn key off.

NOTE

This should ONLY be used in an EMERGENCY and not to disconnect the battery under normal conditions.

UPRIGHT AND CARRIAGE:

1. Check the forks for cracks, fractures, and excessive wear. The height of the fork tips should not differ more than (6.5 mm) or l/4 of an inch.

2. The locking tabs on the forks should move freely but lock the forks securely in place on the carriage. The forks should move in either direction without binding.

3. Inspect load backrest and carriage for cracks, unusual wear, and stress areas.

Also check tightness of mounting bolts of backrest to fork bars. Fig. 84M467

Fig. 17796

I

Fig. 17795

Fig. 20282

4. Check fork stop pins for security of mounting.

5. Check lift cylinder piston rods for nicks and scoring or any unusual wear. Also check cylinder packings for any excessive leaks.

6. Check the lift chains for equal and proper tension. Do so by pulling on chains with light and equal pressure. Also check condition of chains, if pins and links seem to be excessively loose the lift chains must be replaced.

7. Inspect the lift cylinder chain anchors.

Each anchor must be retained by two nuts and there must be a split pin on the ends. Fig. 19507

Fig. 19493

Fig. 19484

Fig. 19482

8. Check the anchor bolts on carriage. Make sure all split pins are present and undamaged.

9. Inspect the rear chain for equal and correct adjustment, on the Hi-Lo and Triple Stage uprights. Fig. 19493

Fig. 19486

11. With upright fully lowered, check upright latch for freedom of movement. Fig. 19487

Fig. 19488