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ARMY TM 9-4120-381-14
NAVY EE-000-CA-MMA-010/7053-AC
AIR FORCE TO 35E9-136-31
4-71. CIRCULATOR FAN (EVAPORATOR) - Continued.
REPAIR/REPLACE - Continued.
Acetone and Methyl-Ethyl Ketone (MEK) are flammable and their vapors can be
explosive. Repeated or prolonged skin contact or Inhalation of vapors can be toxic.
Use a well ventilated area, wear gloves, and keep away from sparks or flame.
5.
Clean exposed ends of shaft (15).
6.
Dress high metal defects on shaft (15) with file.
7.
Remove shaft (15).
8.
Slide one end of shaft (15) into each bearing (8) and remove both bearings individually.
9.
Remove two bearing cups (9).
10.
Install shaft (15). Extend shaft on pulley side to length measured in step 1.
11.
Install two bearing cups (9) and bearings (8).
12.
Install two replacement bearing collars (7) by turning quarter turn, locking bearings in place.
13.
Tighten set screw (6).
14.
Apply corrosion preventative compound to exposed ends of shaft (15).
INSTALLATION
1.
Install blower (14) by tilting away from coil.
2.
Secure blower to brackets (4) with 10 screws (1), lockwashers (2), and flat washers (3).
3.
Secure blower to housing (13) with 6 screws (10), lockwashers (11), and flat washers (12).
FOLLOW ON PROCEDURES
1.
Install circulator fan pulley (para 4-68)
2.
Install evaporator motor (para 4-70).
3.
Install and adjust fan belt (para 4-69).
4.
Close control box (para 4-45).
5.
Connect air conditioner input power at source.
4-138
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