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CAUTION: USE EXTREME CARE TO PREVENT DAMAGE OR BENDING TO THE BLOWER WHEEL FRAME AND/OR BLADES.
6.4.1.3
BLOWER ASSEMBLY: The components that comprise the blower assembly are the blower motor (10), blower scroll (30) and blower wheel (20). Over time, these components can become dirty causing the assembly to have less than optimal performance. It is essential that this assembly remains free and clear of all dirt, dust, and foreign matter. In an effort to ensure that the blower assembly is free and clear, disassembly may be required (refer to disassembly, section 5). Using a soft utility brush, vacuum, and/or rags (or other tools that may be required), remove all dirt, dust, and foreign matter from the blower wheel and from the inside of the blower scroll. After cleaning procedure is accomplished, refer to Assembly (section 9).
6.4.1.4
CONDENSATE DRAIN: The condensate drain can become clogged with dirt, dust and foreign matter over time. It is essential that the drain remain free and clear of foreign matter or performance will be less than optimal. Use a small brush or other suitable cleaning tool to ensure that all foreign matter is removed from the drain.
6.4.1.5
WATER DEFLECTOR: The water deflector can become clogged with dirt, dust and foreign matter over time. It is essential that the deflector remain free and clear of foreign matter or performance will be less than optimal. Use a small brush or other suitable cleaning tool to ensure that all foreign matter is removed from the deflector.
6.4.1.6
EXPANSION VALVE: The expansion (40) valve should be free from dirt, dust and foreign matter. Use a brush or rag to clean.
Component Maintenance Manual
12037 N Highway 99
Seminole, OK 74868
Phone (405) 382-0731
Fax (405) 382-0737
http://www.enviro-ok.com
EFFECTIVITY: ALL 21-00-09
Page 5001
FEBRUARY 16, 2010
CHECK (INSPECTION SCHEDULE)
TASK 21-00-09-21-801
7.0
R-134a AIR CONDITIOING SYSTEM COMPONENT – INSPECTION SCHEDULE
SUBTASK 21-00-09-21-001
7.1
Compressor Drive Module Assembly and Condenser Blower Assembly inspection schedule:
NOTE: This is the recommended visual inspection schedule for the Compressor Drive Module and Condenser Blower Assembly. Adherence to this schedule will ensure that all components of the assembly are in accordance with the manufacturer’s specifications and is necessary to detect structural failure, deterioration or damage, and to determine the need for corrective action.
7.1.1
If any component listed in this schedule requires cleaning, refer to Cleaning Procedure (Section 6).
7.1.2
If any component listed in this schedule requires repair and/or replacement, refer to Repair (Section 8).
Component
Type Inspection
Service Hours
Drive belt/pulley
Visually inspect for wear, nicks, cracks or looseness, and proper tracking.
Realign & tension and/or replace as required.
Inspect belt cover for cracks or other damage.
500-800
800-1000
Compressor/Shaft seal
Visually inspect for leaks (excessive oil spray)
Bearing inspection
500-800
1000-1500
Condenser outlet and fan shrouds
Visually inspect condenser outlet and fan shroud for signs of cracking, separation between shroud and condenser coil.
500-800
Condenser coil
Visually inspect condenser coil for damage or dirt accumulation.
Visually inspect, clean and comb coil fins.
Inspect for leakage.
Inspect plumbing for damage weathering and wear
Visually inspect return bends for nicks, dents, cracks, or other damage.
500-800
Electrical wiring
Visually inspect wiring for insulation damage, replace as required.
500-800
Drive motor/brushes
Visually inspect drive motor brush length and commutator for wear.
Internal contamination inspection
Motor insulation resistance check (refer to Special Procedures, Section 12)
Inspect brushes for cracks, chipped edges, frayed leads, loose rivets or shunt connections.
Inspect brush holders for looseness, damage from arcing, heat distortion or cracks.
Brush replacement
Motor bearing inspection (refer to Special Procedures, Section 12)
Bearing replacement
Motor overhaul
500-800
800-1000
1000-1500
2500-3000
2500-3000
Receiver dryer assembly
Inspect for leakage.
Inspect plumbing for damage, weathering, and wear.
Verify mounting hardware is secure.
Inspect refrigerant charge level.
500-800
Belt cover
Check cover for cracking or other damage.
500-800
Component Maintenance Manual
12037 N Highway 99
Seminole, OK 74868
Phone (405) 382-0731
Fax (405) 382-0737
http://www.enviro-ok.com
EFFECTIVITY: ALL 21-00-09
Page 5002
FEBRUARY 16, 2010
　
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