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CHAPTER 4 UNIT MAINTENANCE | Up
TM-5-2590-512-13P Earth Auger Assembly Model 1650EH-MS Manual | Next
4-8. SECTION II. TABLE OF UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) |
TM 5-2590-512-13&P
SECTION I. REPAIR PARTS AND SPECIAL TOOLS (RPSTL)
4-1. Spare Parts.
A spare master link (for use in the repair of a broken drive chain link) is located and secured to a washer welded
inside the Auger Drive Unit housing. Remove safety covers to gain access.
4-2. Special Tools.
None required. All hardware is S.A.E. standard. Snap ring pliers are included in Kit.
4-3. Repair Parts.
Repair parts are listed in Appendix F of this manual.
SECTION II. UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS).
4-4. PMCS Procedures.
Your PMCS table lists the inspections and care required to keep your equipment in good operating condition. If
your equipment does not perform as required, refer to the troubleshooting procedures in Section III of this
chapter. Report any malfunctions or failures on DA Form 2404 or refer to DA Pam 738-750.
4-5. General.
a.
All moving drive parts of the Earth Auger Assembly are contained in the Auger Drive Unit. To gain access
remove safety covers.
b.
Inspect all parts for damage, broken or loose parts. Note condition of bearings, and inspect for cracks in
housing.
c.
Check chain for looseness. Adjust to correct tension if loose (see para 4-19).
4-6. Explanation of Columns.
Item No. This column lists a logical order for performing PMCS. Use the number in this column as the 'TM Item
No." on DA Form 2404, Equipment Inspection and Maintenance Work sheet, when recording the
results of PMCS.
Interval. This column tells you when to do a certain check or service.
Item to be inspected. This column lists the specific item being inspected.
Procedures. This column tells you how to do the required checks and services. Carefully follow these
instructions.
4-7. Leakage Definitions.
It is necessary for you to know how fluid leakage affects the status of your equipment. The following are
definitions of the types/classes of leakage you need to know to be able to determine the status of your Earth
Auger Assembly.
Leakage Definitions for Unit PMCS.
CLASS I. Seepage of fluid (as indicated by wetness or discoloration) not great enough to form drops.
CLASS II. Leakage of fluid great enough to form drops but not great enough to cause drops to drip from the
item being inspected.
CLASS III. Leakage of fluid great enough to form drops that fall from the item/system being checked/
inspected.
4-2
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