TM-9-2320-366-34-1 MTV Direct Maintenance Manual M1083 Series - Volume 1 Download
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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.