TM 5-3805-281-24-1
Tests
5. A pressure reading not in the ranges given can be an
indication of contamination or sticking spools in the
front (F) or rear (H) pump control valve. Before making
any adjustments, check the front and rear pump control
pressure sensors and the operation of remote control
spool in front and rear pump regulators.
Typical Front or Rear Pump Control Valve Pilot Oil Control Signal--
Specification
Pressure ................................................... 980--1569 kPa (9.8--15.7 bar)
(142--228 psi) from slow idle to
fast idle with all functions in
neutral
Typical Front or Rear Pump Control Valve Pilot Oil Control
Signal--Specification
Pressure .................................................... 2 942--3 923 kPa (29.4--39.2
bar) (427--569 psi) at fast idle
with raised track at full speed
For an adjustment to the front pump control valve, use the
right propel with track raised or bucket function over relief.
For an adjustment to the rear pump control valve use the
left propel with track raised or swing function over relief
for the rear pump control valve. Turn the adjusting plug (J)
in to decrease pressure reading; turn adjusting plug out to
increase pressure reading. Tighten nut (I).
9025
25
100
E--Right Control Valve
F--Front Pump Control Valve
G--Left Control Valve
H--Rear Pump Control Valve
I--Nut
J--Adjusting Plug
CED,TX08227,3139
1927MAY984/4
6-247
