TM 5-3805-274-13&P
0044
REMOVAL
1.
Start engine and engage PTO (TM 9-2320-273-10). Lower dump bed completely and shut down engine.
2.
Remove two screws (Figure 1, Item 2) and cover (Figure 1, Item 3) from dog house (Figure 1, Item 5).
3.
Remove hoist cylinder automatic bleeder valve (Figure 1, Item 4) from hoist cylinder (Figure 1, Item 8).
4.
Remove O-ring (Figure 1, Item 6) and back-up ring (Figure 1, Item 7) from hoist cylinder automatic
bleeder valve (Figure 1, Item 4). Discard back-up ring (Figure 1, Item 7) and O-ring (Figure 1, Item 6).
END OF TASK
INSTALLATION
1. Install new back-up ring (Figure 1, Item 7) and O-ring (Figure 1, Item 6) on hoist cylinder automatic
bleeder valve (Figure 1, Item 4).
2. Install hoist cylinder automatic bleeder valve (Figure 1, Item 4) on hoist cylinder (Figure 1, Item 8).
3. Install cover (Figure 1, Item 3) on dog house (Figure 1, Item 5) with two screws (Figure 1, Item 2).
4. Start engine and engage PTO (TM 9-2320-273-10). Raise dump bed to pressurize hydraulic system.
Check system for leaks.
END OF TASK
CLOSING BLEEDER VALVE
NOTE
Manual operation of the automatic bleeder valve is to be used only
when a new valve is not available for replacement.
1. Remove two screws (Figure 1, Item 2) and cover (Figure 1, Item 3) from dog house (Figure 1, Item 5).
2. Install suitable hex key and turn hex screw (Figure 1, Item 1) clockwise until seated.
3. Reinstall cover (Figure 1, Item 3) with two screws (Figure 1, Item 2).
END OF TASK
MANUAL BLEEDING PROCEDURE
1.
Start engine and engage PTO (TM 9-2320-273-10).
2.
Raise dump bed approximately six in. and shut down engine.
3.
Remove two screws (Figure 1, Item 2) and cover (Figure 1, Item 3) from dog house (Figure 1, Item 5).
4.
Using suitable hex key, turn hex screw (Figure 1, Item 1) counterclockwise until steady stream of oil
runs out.
5. Close hoist cylinder automatic bleeder valve (Figure 1, Item 4) by turning hex screw (Figure 1, Item 1)
clockwise until tight.
0044-2
