TM 5-3805-280-24-1
Tests
3. Disconnect pilot filter inlet line (D) at pilot filter. Install
tee (B) and gauge (C).
Pressure can also be checked at the test port in fitting
at outlet port of pilot pump (F). Install adapter (G) and
gauge (C).
NOTE: Because the plug is installed dry at the factory,
the plug can be difficult to remove.
4. Install the temperature probe on the hydraulic
tank-to-pump suction line. (See JT05800 Digital
Thermometer Installation in this group.)
5. Heat hydraulic oil to the specified temperature. (See
Hydraulic System Warm-Up Procedure in this group.)
Oil--Specification
Temperature ........................................................... 50 5C (120 10F)
6. Run machine at specifications. Record pressure
reading for pilot pressure regulating valve (A).
Engine in Standard Mode--Specification
Speed ........................................................................................... Fast Idle
A--Pilot Pressure Regulating Valve
B--Tee Fitting
9025
Work Mode Selector--Specification
C--Gauge
25
D--Pilot Filter Inlet Line
61
Position ........................................................................................ Dig Mode
E--Pilot Pump
G--Adapter
E Mode Switch--Specification
Position .................................................................................................. Off
HP Mode Switch--Specification
Position .................................................................................................. Off
Auto-Idle Switch--Specification
Position .................................................................................................. Off
Pilot System--Specification
Pressure .................................................................. 3925 + 980 - 490 kPa
(39.2 + 9.8 - 4.9 bar)
(570 + 140 - 70 psi)
Continued on next page
TX,9025,GG2646
1908JUN984/6
6-192
