User Manual

ManualsBrandsJLG ManualsSpecial machinery723A Service Manual

6-5

L2906H, 2906H, 3507H, 619A, 723A, 29.6LP, 29.6, 35.7

Transmission

6.6 TRANSMISSION FILTER

REPLACEMENT

The hydrostatic pump filter is located on the left (inside)

of the pump (1).

Cleanliness is of extreme importance. Before attempting

to remove the transmission filter, thoroughly clean the

exterior of the transmission to help prevent dirt from

entering during the replacement process. Avoid sprayi ng

water or cleaning solution onto or near the transmission

direction solenoids and other electrical components.

6.6.1 Filter Removal

1. Park the machine on a firm, level surface, fully

retract the boom, lower the boom, place the

transmission control lever in (N) NEUTRAL, turn rear

wheels to give easier access to rear of engine

compartment, engage the park brake and shut the

engine OFF.

2. Place a Do Not Operate Tag on both the ignition key

switch and steering wheel, stating that the machine

should not be operated.

3. Open the engine cover. Allow the system fluids to

cool.

4. Properly disco nnect t he batt ery.

5. Remove the air cleaner assembly.

6. To allow easier access to the filter, label, disconnect

and cap all hydraulic hoses in the filter area, cap all

fittings and openings to keep dirt and debris from

entering hydraulic system.

7. Place a container or shop rags below the filter

housing to contain any spilled hydraulic oil.

8. Using a 25 mm (15/16 in) wrench, loosen and

remove the filter housing (2), filter (3) and spring (4).

6.6.2 Filter Installation

1. Clean the area surrounding the hydraulic pump filter.

2. Install a new o-ring (5) on the base of the filter

housing and lubricate the new o-ring with clean

hydraulic oil.

3. Install the small end of the filter spring (4) into the

filter base (6).

4. Install the filter (3) into the filter base (6) directly

behind the filter spring.

5. Slowly screw the filter housing into the filter base

keeping the filter and housing aligned.

6. Torque the filter housing to 45 Nm (33 lb-ft).

7. Uncap and reconnect the previously labeled hoses

to their appropriate locations.

8. Fill hydrau li c re se rv oir and bleed the sy st em.

9. Reinstall the air cleaner assembly.

10. Properly connect the battery.

11. Close and secure the engine cover.

12. Remove the Do Not Operate Tags from both the

ignition key switch and the steering wheel.

MZ5420