TM-9-2350-311-10 M109 Operator's Manual for M109A2, M109A3, M109A4 and M109A5 Download
Page 400 of 775
TM 9--2350--311--10 3--2 Change 6 Section I. LUBRICATION INSTRUCTIONS 3--1 LUBRICATION Lubrication instructions are in Appendix G of this manual. All lubrication instructions are mandatory. Section II. TROUBLESHOOTING PROCEDURES 3--2 INTRODUCTORY INFORMATION This table lists common malfunctions that you may find during the operation of the self-propelled howitzer or its components. Perform the tests, inspections, and corrective actions in the order they appear in the table. This manual cannot list all the malfunctions that may occur, all the tests and inspections needed to find the faults, or all corrective actions needed to correct the fault. If the equipment malfunction is not listed or actions listed do not correct the fault, notify unit maintenance. NOTE Before using the troubleshooting table, be sure all applicable operating checks in Chapter 2 have been performed. 3--3 MALFUNCTION INDEX The following Malfunction Index is to help locate the correct troubleshooting procedure quickly. Troubleshooting Procedures Page BATTERY Engine cranks slowly; engine fails to crank 3--4 ............................................. Batteries do not stay charged 3--4 ........................................................ MASTER RELAY MASTER switch indicator light fails to operate 3--4 .......................................... ENGINE Engine cranks but fails to start 3--5 ........................................................ Engine does not accelerate properly or does not develop full power 3--5 ....................... Engine has low or no oil pressure 3--6 ..................................................... Engine overheats 3--6 ................................................................... TRANSMISSION Vehicle does not drive; transmission does not operate in any shift position 3--7 .................. TRACKS AND SUSPENSION Vehicle pulls to one side with steering wheel in center position 3--7 ............................ Vehicle throws track(s) 3--7 ..............................................................