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TM 9-5130-338-12&P
4-5. PROCESSING UNPACKED EQUIPMENT-Continued.
b.
Examine hydraulic impact wrench for evidence of damage during shipment and for external rust or corrosion. If
external corrosion or rust is found, examine impact head internally for additional rust or corrosion. Instructions
for servicing hydraulic impact wrench components are found in Section III of this chapter.
4-6. PRELIMINARY SERVICING AND ADJUSTMENT OF EQUIPMENT.
a.
General. Equipment faults disclosed during preliminary inspection and servicing or during break-in period will be
corrected by unit maintenance.
b.
Assembly and Preparation for Use.
1.
Remove hydraulic impact wrench from packing.
2.
Clean exterior of hydraulic impact wrench with cloth (Appx. C, item 5).
3.
Apply sealing compound (Appx. C, item 10) or antiseize tape (Appx. C, item 17) to threads of
hydraulic lines.
4.
Attach hydraulic hoses to hydraulic impact wrench. Ensure inlet and outlet hoses are properly
connected.
5.
Stow hydraulic impact wrench at proper location.
c.
Initial Adjustments, Checks, and Self-Test.
1.
Select several fastenings of size and type that are to be used in a particular operation.
2.
Assemble fastenings, finger tight, on a test block or other support that will not be damaged in event of nut
or capscrew failure.
CAUTION
Do not operate hydraulic impact wrench with flow higher than 5.0 gallons per minute (18.9 liters
per minute). Excessive speeds may damage impact wrench internally.
3.
Operate hydraulic impact wrench in accordance with paragraph 2-6.
4.
Using a torque-indicating wrench, measure amount of torque required to turn each fastener. Indicated
readings should be substantially similar to recommended torque value. If indicated torque values are not
rational, refer to Section IV of this chapter. Otherwise, power supply equipment and hydraulic impact
wrench may be considered to be in satisfactory operating condition and actual torque operations may be
started.
5.
Operate hydraulic impact wrench in accordance with paragraph 2-6.
Section III. UNIT MAINTENANCE PMCS
4-7. INTRODUCTION TO PMCS TABLE.
a.
General. The PMCS table lists the inspections and care of the hydraulic impact wrench required to keep it in
good operating condition.
b.
PMCS Procedures.
1.
Item No. Column. Use the numbers in the Item No. column of PMCS and Material Condition Status
Reporting Criteria tables for the TM Item No. column of DA Form 2404, Equipment Inspection and
Maintenance Worksheet, when a deficiency has been found.
4-2
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