TM 9-2510-247-13&P
0004 00
HYDRAULIC SYSTEM CONTROLS AND INDICATORS - Continued
Figure 12. Hydraulic Valves and Gauges
KEY
CONTROL OR INDICATOR
FUNCTION
5
Top Hydraulic Relief Valve
Provides remote point for air to be drained from
reservoirs.
6
Pressure Gauge
Provides ability to monitor hydraulic fluid
pressure. Must maintain back pressure of 300
to 800 psi when the boom or mast is operated
with no load.
7
Hydraulic Flow Valves
Provides ability to adjust hydraulic back
pressure (WP 0003).
8
Hydraulic Safety Valves
Control hydraulic pressure and contain hydraulic
flow valves to allow for adjustment of back
pressure.
0004 00-2
