TM 10-4130-237-14
CHAPTER 4
UNIT MAINTENANCE
Section I - REPAIR PARTS; SPECIAL TOOLS; TEST, MEASUREMENT, AND
DIAGNOSTIC EQUIPMENT (TMDE); AND SUPPORT EQUIPMENT
Para
Para
Common Tools and Equipment . . . . . . . . . 4–1
Repair Parts . . . . . . . . . . . . . . . . . . . . . . . . . 4–3
Special Tools, TMDE, and
Support Equipment . . . . . . . . . . . . . . . . 4–2
Section II. SERVICE UPON RECEIPT
Unpacking and Inspection . . . . . . . . . . . . . 4-4
Section III. UNIT PREVENTIVE MAINTENANCE CHECKS
AND SERVICES (PMCS)
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
PMCS Procedures . . . . . . . . . . . . . . . . . . . . 4-6
Section IV. UNIT TROUBLESHOOTING
Unit Troubleshooting . . . . . . . . . . . . . . . . . 4–7
Section V. UNIT MAINTENANCE PROCEDURES
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–8
Housing Replacement . . . . . . . . . . . . . . . . 4–9
Housing Repair . . . . . . . . . . . . . . . . . . . . 4–10
Wiring Harness Repair . . . . . . . . . . . . . . . 4–11
Toggle Switch S3
Replacement . . . . . . . . . . . . . . . . . . . . 4–12
Water Pump Drivebelt
Replacement . . . . . . . . . . . . . . . . . . . . 4–13
Compressor Drivebelt
Replacement . . . . . . . . . . . . . . . . . . . . 4–14
Fan Assembly Replacement . . . . . . . . . . . 4–15
Pulley Drive (Used on all
water chillers Model LCW–2685 only)
Replacement/Repair . . . . . . . . . . . . . . . 4–16
Centrifugal Clutch
(Model LCC-2685 only)
Replacement/Repair . . . . . . . . . . . . . . 4–17
Exhaust System
Replacement/Repair . . . . . . . . . . . . . . . 4–18
Engine Assembly
Replacement/Repair . . . . . . . . . . . . . . . 4–19
Air Cleaner Elements
Replacement . . . . . . . . . . . . . . . . . . . . . 4–20
CarburetorReplacement . . . . . . . . . . . . . . 4–21
Intake Manifold Assembly
Replacement . . . . . . . . . . . . . . . . . . . . . 4–22
Starter Panel Assembly
Replacement/Repair . . . . . . . . . . . . . . . 4–23
Sparkplugs Replacement . . . . . . . . . . . . . 4–24
Armature Group
Replacement/Repair . . . . . . . . . . . . . . . 4–25
Dipstick and Tube Assembly
Replacement/Repair . . . . . . . . . . . . . . . 4–26
Starter Replacement . . . . . . . . . . . . . . . . . . 4–27
Flywheel and Ring Gear
Assembly Replacement/
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28
High Pressure Switch
Continuity Test . . . . . . . . . . . . . . . . . . . 4–29
Low Pressure Switch
Continuity Test . . . . . . . . . . . . . . . . . . . . . 4–30
Water Pump Replacement . . . . . . . . . . . . . 4–31
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