TM-9-2320-366-34-3 MTV Direct Maintenance Manual M1083 Series - Volume 3 Download
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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.