5-19. REMOVAL AND DISASSEMBLY OF COMPONENTS.
Before removal of any electrical component, disconnect from power source.
Ensure that adequate clearance is available for removal of the component. Disassemble the Heater to the
extent necessary to provide adequate working clearance.
All personnel must stand clear during lifting operations. A swinging or shifting load may cause injury or
death to personnel.
Use a chain hoist, jack, or other aid when lifting heavier components. Lifting device should be positioned and
attached to components to remove all strain from mounting hardware before last hardware is removed.
Discard O-rings, gaskets, seals, and similar material when removed. Be sure that all traces of oil, gaskets,
and sealants are removed. When possible, use wood or plastic probes and scrapers to prevent damage to machined
Cotter pins, lock washers, lockwire, self-locking nuts, and similar devices should be discarded when
removed. Self-locking fasteners that loosen up must be replaced, not tightened.
To prevent moisture and foreign matter from entering open housings, lines, and other openings, use
protective coverings as soon as possible after disassembly. Wrap all parts in clean paper or dip parts in preservative oil
(item 17, appendix E) or equivalent.
Remove parts only if repair or replacement is required. Do not disassemble a component any further than
necessary to accomplish needed repairs.
Instructions for preparation of material to paint, how to paint, and material to be used are in TM 43-0139. Instruction for
camouflage painting are contained in FM 5-20. Instructions for stenciling and marking military vehicles are listed in TB 43-
0209. Data plate location and description are listed in Chapter 2.
Refer to Section III, Preventive Maintenance Checks and Services (PMCS), Lubrication Instructions, and Mandatory
Replacement Parts, for lubrication procedures and requirements for the Heater. The instructions include types and grades
of lubricant used, lube points, locations, and frequency of the required lubrication.
Remove protective grease coatings from new parts before installation.
To replace O-rings, first clean groove, then stretch ring into position. A light coating of fluid, which the ring will
operate in, will make assembly easier.