TM 5-3805-280-24-1
Tests
2. Connect flow meter in series with pilot pressure inlet
line (A) at pilot filter (B).
Open the flow meter loading valve.
3. Install the temperature probe on the hydraulic
tank-to-pump suction line. (See JT05800 Digital
Thermometer Installation in this group.)
4. Heat hydraulic oil to the specified temperature. (See
Hydraulic System Warm-Up Procedure in this group.)
Oil--Specification
Temperature ........................................................... 50 6C (120 10F)
NOTE: The pilot pressure regulating valve will regulate
pump discharge pressure. It is not necessary to
load the pump using flow meter loading valve.
5. Run engine at test specifications. Record flow meter
reading.
If pressure is low, check the pilot pressure regulating
valve.
If flow is low, check inlet hose to pump for restriction. If
there is no restriction, replace pump.
9025
A--Pilot Pressure Inlet Line
25
B--Pilot Filter
122
Engine in Standard Mode--Specification
Speed .......................................................................................... 2000 rpm
Work Mode Selector--Specification
Position ........................................................................................ Dig Mode
E Mode Switch--Specification
Position .................................................................................................. Off
HP Mode Switch--Specification
Position .................................................................................................. Off
Auto-Idle Switch--Specification
Position .................................................................................................. Off
Continued on next page
TX,9025,GG2663 1908JUN983/4
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