JLG G12-55A Service Manual - Manual (Page 98)

Transmission
6-6 G10-55A, G12-55A
16. Fill the transmission. Refer to Section 2.5, “Fluids
and Lubricant Capacities,” for proper capacity.
17. Transmission oil may be added through the dipstick
tube (5). Remove the dipstick and add hydraulic oil.
Check the oil level by taking intermittent dipstick
readings as outlined in the appropriate Operation &
Safety Manual. DO NOT overfill. Reinstall the
dipstick when finished.
18. Transmission transfer case fluid may be added
through the fill plug (6). Install fill plug and tighten
when filled to appropriate level.
19. Properly connect the batteries.
Note: Check transmission oil level with engine at idle
and transmission oil cold.
20. Apply park brake, shift transmission control lever to
the (N) NEUTRAL position and lower the forks or
attachment to the ground.
21. Remove the transmission dipstick (5) and check the
oil level. The oil level should be at the MAX line.
22. If oil is low, add oil as required and recheck level.
23. Replace the transmission dipstick. when finished.
24. Install the engine cover.
25. Close and secure engine cover.
26. Recheck all drain plugs, lines, connections, etc., for
leaks, and tighten where necessary.Close and
secure the engine cover.
27. Remove the Do Not Operate Tags from both the
ignition key switch and the steering wheel.
6.4.4 After Transmission Service
or Replacement
In general:
1. Check transmission oil level and add oil as required.
2. Disconnect and clean all transmission cooler hoses.
When possible, remove transmission lines from the
machine for cleaning.
3. Drain and flush entire transmission cooling system.
4. Thoroughly clean transmission filter screens and
cases, and replace transmission filter elements.
Note: Check transmission oil level with engine at idle
and oil at normal operating temperature.
5. Reassemble all components and fill the transmission
with clean, fresh hydraulic oil through the dipstick
tube opening (5). Check the level by taking
intermittent dipstick readings as outlined in the
appropriate Operation & Safety Manual. DO NOT
overfill. Reinstall the dipstick when finished.
6. Transmission transfer case fluid may be added
through the fill plug (6). Install fill plug and tighten.
7. Apply park brake, shift transmission control lever to
the (N) NEUTRAL position and lower the forks or
attachment to the ground.
8. Remove the transmission dipstick (5) and check the
oil level. The oil level should be at the MAX line.
9. If oil is low, add oil as required and recheck level.
10. Replace the transmission dipstick. when finished.
11. Close and secure engine cover.
12. Recheck all drain plugs, lines, connections, etc., for
leaks, and tighten where necessary.
MY6990
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