High hydraulic fluid pressures are developed during cart operation. The
connecting hoses must be free of defects and the hose disconnects
clean to avoid hose rupture or leaks.
Preliminary Checks. Prior to operation, the following steps should be taken to ensure the cart will operate
properly and safely:
Open cabinet door and control panel cover prior to beginning checks.
Use volatile solvents only in a well ventilated area. Avoid prolonged
contact with skin.
Inspect the connecting hoses and clean hose disconnects using dry cleaning solvent, P-D-680, if necessary.
Never operate the cart if hydraulic fluid level in reservoir is less than
LOW LEVEL sight glass. System damage could result. Replenish as
Observe reservoir sight glasses and add fluid, MIL-H-5606 or MIL-H-83282, until it is to the center of the OPNL
LEVEL sight glass.
Inspect piping and fittings for obvious leaks.
SECTION IV. OPERATING PROCEDURES (AH-64)
Pre-operation Bleed Procedure. To remove air from the pipes and hoses, proceed as follows:
Ensure hydraulic cart is serviced with MIL-H-5606. If it is not, drain and flush hydraulic reservoir (Paragraph 2-3).
Connect two hoses from AH-64 hydraulic hose kit, P/N 7-262100019-601, to cart's hose quick disconnects (9,
Figure 1-3). Connect one hose to left quick disconnect and one hose to right quick disconnect. (The tail quick
disconnect is not used on the AH-64).
Remove grounding cable from cart and connect as required.