TM-9-2320-366-34-1
M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)
TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME NO. 1 OF 4
AUGUST 2005
CHANGE 2
TM-9-2320-366-34-1 - Page 1241 of 1591
k2. DUMP BODY DOES NOT LOWER
TM 9-2320-366-34-1
2-1072.10
Change 1
INITIAL SETUP
Equipment Conditions
Engine shut down (TM 9-2320-366-10-1)
Tools and Special Tools
Tool Kit, Genl Mech (Item 78, Appendix B)
Lifting Bracket, Dump Body (2) (Item 8, Appendix D)
Gloves, Mens (Item 34.2, Appendix C)
STE/ICE-R (Item 70, Appendix B)
Materials/Parts
Rag, Wiping (Item 60, Appendix C)
Personnel Required
(2)
References
TM 9-4910-571-12&P
Fault corrected.
YES
Replace dump body hoist cylinder
(para 17-4).
Perform Electrical System Troubleshooting
e144. Dump Body Does Not Lower (TM 9-
2320-366-20-2) prior to beginning this task.
NOTE
START
Can pressure reducing valve
be adjusted to 325-375 PSI?
1.
Hydraulic oil level OK.
PTO OK.
Hydraulic hoses and fittings
OK.
Hydraulic oil filter OK.
Dump body electrical system
OK.
KNOWN INFO
POSSIBLE PROBLEMS
Faulty pressure reducing valve.
Faulty dump body hoist
cylinder.
TEST OPTIONS
Pressure Test or
STE/ICE-R Test #51
REASON FOR QUESTION
If pressure reducing valve can
not be adjusted to 325-375
PSI, pressure reducing valve is
faulty.
NO
YES
Clean or replace pressure
reducing valve (para 17-3).
NO
TEST OPTIONS
Operational Test
REASON FOR QUESTION
If dump body does not lower,
dump body hoist cylinder is
faulty.
2.
Does dump body lower?
KNOWN INFO
Hydraulic oil level OK.
PTO OK.
Hydraulic hoses and fittings
OK.
Hydraulic oil filter OK.
Dump body electrical system
OK.
Pressure reducing valve OK.
POSSIBLE PROBLEMS
Faulty dump body hoist
cylinder.
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