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Table 4-1. Preventive Maintenance Checks and Services
Organizational Maintenance Category
Monthly Schedule (or quarterly)
Item to be
inspected
Evaporator inlet and discharge louvers
Air filter
Condenser guard
Fresh air screen
Evaporator Coil
Condenser coil
Condenser cover
Housing covers
Fans
Heaters
Controls and instruments
Junction box components
Wiring and electrical components
Liquid sight indicator
refrigeration system
Procedures
Clean,
inspect for damage. Replace if
necessary.
Inspect and service or replace if necessary.
Inspect and clean. Replace if damaged.
Inspect and clean or replace as necessary.
Clean and inspect.
Clean and inspect.
Inspect, clean and repair or replace if
damaged.
Repair or replace damaged covers.
Check fans for damage. Check motors for
evidence of over heating. Replace damaged
fans and motors.
Check for breaks in wiring and insulation.
Tighten loose connections.
Check for damage to any controls in control
module. Replace defective parts or control
module.
Check for defective relays and circuit breaker.
Check for damaged or frayed wiring. Check for
defective electrical components. Repair or
replace defective wiring. Replace defective
electrical components.
Check for damage.
Check compressor, valves, and piping for
damage. Report damage to direct support
maintenance.
Paragraph
reference
paragraph 4-18
paragraph 4-17
paragraph 4-20
paragraph 4-19
paragraph 4-24
paragraph 4-23
paragraph 4-21
paragraph 4-21
paragraphs 4-38,
4-39, and 4-40
paragraph 4-35
paragraphs 4-44,
thru 4-48
paragraphs 4-49
thru 4-54
paragraph 4-33
paragraph 4-63
l Perform check and service weekly.
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