TM-9-2320-366-34-3

M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME NO. 3 OF 4

AUGUST 2005

CHANGE 2

TM-9-2320-366-34-3 - Page 886 of 1178

TM 9-2320-366-34-3

17-16

Change 2

17-3.

M1090/M1094 FOUR-WAY RELIEF VALVE REPLACEMENT/REPAIR (CONT)

(9)

Start engine (TM 9-2320-366-10-1).

(10) Position PTO switch to ON (TM 9-2320-366-10-1).

(11) Increase engine speed to 1250-1450 RPM (TM 9-

2320-366-10-1).

(12) Attach a temperature indicator label to hydraulic

reservoir (11).

(13) Press and hold DUMP BED UP/DOWN switch to the

UP position until hydraulic oil temperature reaches

140-160

F (60-70 C).

CAUTION

Hydraulic oil temperature must be 140-

160

F (60-70 C) prior to performing

troubleshooting checks.

Failure to comply

may result in inaccurate test results.

NOTE

•

Holding DUMP BED UP/DOWN switch in

the UP position will force hydraulic oil

through relief valve and cause oil

temperature to rise.

•

Measure hydraulic oil temperature near

bottom of hydraulic reservoir.

•

Steps (16) through (24) require the aid of

an assistant.