TM 5-3805-280-24-1
Tests
VALVE SPOOL ACTUATING PILOT
PRESSURE TEST
SPECIFICATIONS
50 5C (120 10F)
Oil Temperature
Engine Speed in Standard Mode
Slow Idle and Fast Idle
Work Mode Selector Position
Dig Mode
E Mode Switch Position
Off
HP Mode Switch Position
Off
Auto-Idle Switch Position
Off
Valve Spool Actuating Pressure
3335--3920 kPa (33.3--39.2 bar)
(485--570 psi)
ESSENTIAL TOOLS
203836 (9/16-18 M 37 x 9/16-18 Sw 37 x 7/16-20 M 37) Tee
SERVICE EQUIPMENT AND TOOLS
Gauge 7000 kPa (70 bar) (1000 psi)
JT05800 Digital Thermometer
Purpose of test is to ensure that the pilot pressure to the
valve spools is enough to shift the spools.
1. Stop engine.
9025
25
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2. Loosen vent plug (K) to release the air pressure in
hydraulic oil tank.
K--Vent Plug
Continued on next page
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