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TM 1-1730-231-13&P
3-28. FLUID LEVEL SIGHT GLASS - Continued
3-28
A.
INSPECTION
Inspect REMOVE FLUID, FULL LEVEL, OPNL LEVEL, and LOW LEVEL sight glasses (1) for cracks, damaged
rubber gasket, broken glass, or physical damage.
B.
REMOVAL
1.
Unscrew drain plug (2) at the bottom of reservoir tank (3) and drain it. Reservoir tank contains approximately 5
gallons of hydraulic fluid.
2.
Remove six screws (4) and lock washers (5) and lift off cover (6) from reservoir tank.
3.
Remove attaching locknut from inside the reservoir tank and remove sight glass (1).
C.
INSTALLATION
1.
Install sight glass (1) in reservoir tank (3) and secure with attaching locknut.
2.
Install cover (6) on reservoir tank with screws (4) and lock washers (5).
3.
Install drain plug (2) at the bottom of reservoir tank. Ensure it is tightened fully.
4.
Fill reservoir tank to the center of the OPNL LEVEL sight glass (1) with MIL-H-5606 or MIL-H-83282 hydraulic fluid.
END OF TASK
3-38
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