frayed insulation. Check that all electrical connections are secure. Check that all manually operated switches and
controls on controller operate freely.
Inspect hydraulic oil reservoir for evidence of physical damage in shipment. Check that the sight glasses are not
damaged. Check the fluid system carefully for evidence of leakage.
Inspect tires for cuts or abrasions and remove any imbedded objects from treads.
Inspect cabinet for any damage. Check door lock and panel cover latch for proper closing and locking.
Remove power and controller cables from the cart. Lay out cables and inspect condition of cable and end fittings.
Any damage to the cable end fitting or evidence of broken wires in the cable is cause for replacement of the cable.
3-8. Servicing Hydraulic System. Service the hydraulic system for use as follows:
The hydraulic reservoir tank (14, Figure 1-3) has been coated with MIL-H-6083 preservative fluid for shipment. MIL-
H-6083 is compatible with the operating fluids listed for use. Make certain drain plug is installed.
Hydraulic fluid MIL-H-5606 or MIL-H-83282 should only be used on
struts. This fluid should not be used on other aircraft or helicopter
Fill reservoir tank at filler neck with hydraulic fluid, MIL-H-5606 or MIL-H-83282, until fluid is to the center of the
OPNL LEVEL sight glass (14, Figure 2-1).
SECTION III. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCB)
3-9. General Information. Maintenance consists of periodic inspections of the hydraulic and electrical components,
including piping and connections; replacement of filter elements; testing of instrument accuracy; troubleshooting a
malfunctioning unit; and lubrication. The cart shall be periodically inspected in accordance with Table 3-1. Lubrication
shall be performed as part of periodic inspection and in accordance with paragraph 3-10. The inspection table is in
Item number column: it lists checks and services to be performed in chronological order regardless of interval.