CHAPTER 2
DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
INSTRUCTIONS
Section I. REPAIR PARTS, SPECIAL TOOLS AND EQUIPMENT
2-1. Tools and Equipment
2-2. Special Tools and Equipment
Tools, equipment, and repair parts issued with or
There are no special tools or equipment required
authorized for the warehouse crane truck are listed in the
for direct support and general support maintenance
basic issue items list in Appendix II of TM
to maintain the warehouse crane truck.
10-3950-203-10.
2-3. Maintenance Repair Parts
Repair parts are listed and illustrated in the repair
parts and special tool list TM 10-3950-203-34P.
Section II. TROUBLESHOOTING
Table 2-1 provides information to diagnose and
warehouse crane truck.
correct unsatisfactory operation or failure of the
Table 2-1. Troubleshooting
Malfunction
Probable Cause
Corrective Action
1.Starter will not crank engine
Defective starter
Repair starter para 3-8)
2.Engine will not start
a. Defective carburetor
a. Repair carburetor (pars 3-11)
b. Defective crankshaft or camshaft
b. Repair or replace crankshaft (pars
5-9) or camshaft (pars 5-10)
3.Engine operates but backfires and
a. Low carburetor float level
a. Adjust carburetor float level (pars
spits
3-11)
b. Defective valves, springs and
b. Replace defective parts (APRs 5-7)
seats.
4.Engine misfires on one or more
Cracked cylinder block or broken
Replace defective cylinder block
cylinders
valve tappet or tappet screw
(APRs 5-12) . Replace defective
valve tappet or tappet screw
5.Engine does not idle properly
Defective carburetor
Repair carburetor (para 3-11)
6.Engine backfires
a. Valve holding open
Repair or replace valves and springs
(para 5-71
b. Weak or broken valve springs
7.Engine lacks power
Defective valves
Repair or replace valves spars 5-7)
8.Engine overheats
a. Defective block
a. Clean, repair or replace block as
required (para 5-12)
b. Leaky radiator
b. Repair radiator (para 3-10)
9.Engine oil pressure is low
a. Clogged oil pump screen
a. Clean oil pump screen (para 5-61
b. Defective oil pump
b. Replace defective oil pump (pars
5-6)
10.Engine exhaust is excessive
Defective pistons or rings
Replace defective parts para 5-8)
11.Engine knocks
a. Worn or damaged main bearings a. Replace main bearings (para 5-9)
b. Excessive end play in crankshaft b. Adjust crankshaft end play (para
Worn or damaged connecting rod. Replace connecting rod bearings
12.Generator output fluctuates or is
a. Weak brush springs
a. Replace brush springs (para 3-7)
low.
b defective or dirty parts
b. Clean and replace defective parts
13.Generator is noisy
Defective bearings or armature
Replace defective parts (para 3-7)
2-1
