TM 10-4630-207-13&P
UNIT MAINTENANCE
WASTE WATER VACUUM TANK TRAILER
NSN 4630-01-513-8155
HYDRAULIC SYSTEM
SERVICE, REPLACE
INITIAL SETUP:
Tools
Personnel Required
Tool Kit, General Mechanic's, Automotive (WP
MOS 77W, Water Treatment Specialist
Materials/Parts
Equipment Condition
Fluid, Hydraulic (WP 0091 00, Item 11)
Tank empty, at atmospheric pressure
Gloves, Work (WP 0089 00, Table 2, Item 5)
Isolation valve open
Rags, Wiping (WP 0091 00, Item 28)
Intake and drain valve closed
SERVICE
Service the hydraulic system by replenishing hydraulic fluid as required through the fill port (figure 1, item
1) on top of the pump, and tightening loose hose, or component connections as necessary.
REPLACE
WARNING
Hydraulic fluid can irritate bare skin. Wear protective gloves to prevent
exposure. Prevent hydraulic fluid spills. Drain a hand pump that must be
replaced and dispose of drained hydraulic fluid in accordance with local
guidelines.
NOTE
To replace a component of the hydraulic system, ensure that intake (figure 1, item 2) and drain (figure 1,
item 3) valves are closed (hydraulic lines drained into pump) to prevent spills. To do this, open both
control knobs (figure 1, item 4) and position the pump lever (figure 1, item 5) along the pump handle
(figure 1, item 6). To replace components, proceed as follows:
4
6
1
2
3
5
Figure 1. Closing Intake and Drain Valves
0025 00-1
