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Table 1-2. Specific Torque Specifications
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TM-10-3930-630-34 Truck Lift Fork GED Solid Rubber Tired Wheels 4000 lbs Capacity 100 and 180 Inch Lift Manual
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Table 2-1. Troubleshooting - Continued - TM-10-3930-630-340013
TM 10-3930-630-34
CHAPTER 2
DIRECT SUPPORT AND GENERAL SUPPORT
MAINTENANCE INSTRUCTIONS
Section I. REPAIR PARTS, SPECIAL TOOLS AND EQUIPMENT
direct and general support maintenance personnel for
2-1. Tools and Equipment
performing maintenance on fork lift truck.
Tools and equipment necessary for the repair of the fork
2-3. Maintenance Repair Parts
lift truck, are authorized by Tables of Allowances (TA)
and equipment (TOE).
Repair parts and equipment authorized for direct and
general support maintenance is listed in TM 10-3930-
2-2. Special Tools and Equipment
630-34P.
No special tools and equipment are required by
Section II. TROUBLESHOOTING
b. This manual cannot list all malfunctions that
2-4. General
may occur, nor all tests,  inspections,  or  corrective
a.  This  section  contains  troubleshooting
actions. If a malfunction is not listed or corrected by
information for locating and correcting most of the
listed corrective actions, notify your supervisor.
troubles which may develop in the fork lift truck. Each
malfunction for an individual component, unit, or system
2-5.
Troubleshooting Table
is followed by a list of tests or inspections which will help
you determine probable causes and the corrective
Refer to table 2-1 for troubleshooting malfunctions, tests
action to take. Perform the tests, inspections, and
or inspections to be completed and the recommended
corrective
actions
in
the
order
listed.
corrective action.
Table 2-1. Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. ENGINE MISSES.
Step 1.
Check valves for warping.
Replace warped valves (para 11-4).
Step 2.
Check for sticking valves.
Clean stem and guide. Grind valve if necessary.
2. ENGINE KNOCKS.
Step 1.
Check for loose connecting rod bearings if it is a sharp knock and oil pressure is low.
Replace bearings (para 11-18).
Step 2.  Check for loose main bearings if it is a heavy knock and oil pressure is low.
Replace main bearings (para 11-36).
Step 3.  Check for loose piston pins if it is a sharp double knock.
Replace pins or bushings (para 11-18).
Step 4.  Check for worn pistons or cylinders.
Replace pistons and rings (para 11-18).
3. ENGINE LOSES POWER.
Step 1.  Check for leaking valves and low compression.
Adjust or grind valves (para 11-4).
Step 2.  Check for worn or sticking piston rings.
Replace piston rings (para 11-18).
2-1

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