TM 5-3805-280-24-1
Tests
If laptop computer is not available, use the digital
pressure and temperature analyzer, and transducers,
or gauges.
a. Stop the engine.
b. Loosen vent plug (K) to release the air pressure in
hydraulic oil tank.
c. Install tees (C) and male quick couplers in line with
pump control valve pilot lines at rear (A) and front
(B) pump regulators. Connect the analyzer and
transducers or gauges (D).
2. Install the temperature probe on the hydraulic
tank-to-pump suction line. (See JT05800 Digital
Thermometer Installation in this group.)
3. Heat hydraulic oil to the specified temperature. (See
Hydraulic System Warm-Up Procedure in this group.)
Oil--Specification
Temperature ........................................................... 50 5C (120 10F)
4. Run machine as specified.
Engine in Standard Mode--Specification
9025
25
Speed ........................................................................... Slow and Fast Idle
91
Work Mode Selector--Specification
Position ........................................................................................ Dig Mode
E Mode Switch--Specification
A--Pump Control Valve Pilot Line
B--Pump Regulator
Position .................................................................................................. Off
C--Tee Fitting
D--Gauge
HP Mode Switch--Specification
K--Vent Plug
Position .................................................................................................. Off
Auto-Idle Switch--Specification
Position .................................................................................................. Off
5. Run engine at slow idle with all functions in neutral.
Record pressure readings.
Continued on next page
TX,9025,GG2652 1921MAY984/6
6-222
