TM 1-4920-446-13 & P
d. Place main pump circuit breaker located in the electrical components panel in ON position. This will energize
the reservoir fluid level gauge located on the control panel.
e. Ensure drain valve is closed then fill the test stand reservoir with hydraulic fluid, MIL-H-83282, until the fluid level
gage indicates 3/4 full.
3-9. Preliminary Lubrication. Carefully inspect the test stand lubricating points referred to in Figure 3-1. Be sure that
initial lubrication exists at all specified points.
SECTION III. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
3-10. General Information. Maintenance consists of periodic inspections of the hydraulic and electrical components,
including piping, hoses, and connections; replacement of filter elements; testing of instrument accuracy; troubleshooting
a malfunctioning unit; and lubrication. Section V of this chapter provides repair or replacement instructions authorized at
the Aviation Unit Maintenance level. Repair or replacement of all other parts is to be done at the Aviation Intermediate
Maintenance Level (annotated in parenthesis after the component to be maintained). The AVUM/AVIM Maintenance
procedures complies with the maintenance Allocation Chart, Appendix B.
3-11. Periodic inspection and servicing. The test stand shall be periodically inspected in accordance with Table 3-1.
Lubrication shall be performed as part of periodic inspection. Daily inspections should be performed before and/or after
each day's operation. Intermediate and periodic inspections (Tables 3-2 and 3-3) will be done at operating intervals of 50
and 100 hours. Refer to Table 3-4 for daily servicing requirements, and to Table 3-5 for a list of lubricants to be used.
Keep all foreign matter out of lubricants. Do not leave lubricant containers open any longer than necessary. Store
lubricants in a clean, dry area.