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Remove belt cover attaching screws.
5.3.1.2
Remove belt cover from assembly.
5.3.2
Removal of Drive Belt (40) and Pulley (20)
CAUTION: DO NOT BEND OR TWIST THE DRIVE BELT EXCESSIVELY DURING REMOVAL OR DAMAGE MAY RESULT.
5.3.2.1
Remove belt cover per 5.3.1.
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 3003
FEBRUARY 16, 2010
5.3.2.2
Remove turn buckle locking device and loosen motor support bolt as well as turn buckle bolt attachments.
5.3.2.3
Loosen drive motor pulley set screws.
5.3.2.4
Slide drive pulley and belt from motor shaft, while at the same time sliding the drive belt off the compressor pulley.
5.3.3
Removal of Compressor Assembly (50)
5.3.3.1
Remove belt cover, drive belt, and drive pulley per 5.3.1 and 5.3.2.
5.3.3.2
Disconnect condenser refrigerant lines from compressor plumbing port and cap off immediately.
5.3.3.3
Remove compressor mounting bolts and washers.
5.3.3.4
Lift compressor from mounting bracket.
5.3.4
Removal of Drive Motor (10)
5.3.4.1
Remove belt cover, drive pulley, and belt per 5.3.1 and 5.3.2.
5.3.4.2
Remove fan shroud and drive pulley as required.
5.3.4.3
Remove main motor mounting bolt and turn buckle attachment bolt.
5.3.4.4
Remove wire clamp and then remove electrical mounting assembly.
5.3.4.5
Remove positive and negative motor leads from relay terminal and negative terminal respectively. Remove positive lead from relay by removing supplied hardware. Remove negative motor lead by removing the bolt from terminal block. (ie attachment stud)
CAUTION: TAKE EXTREME CARE WHEN REMOVING DRIVE MOTOR FROM ASSEMBLY OR DAMAGE TO FAN OR FAN SHROUD COULD OCCUR.
5.3.4.6
Carefully pull motor away from motor support bracket, taking care not to damage fan shroud.
5.3.5
Removal of Fan Shroud (60)
5.3.5.1
Remove motor fan shroud retaining clamp (61).
5.3.5.2
Carefully remove shroud from motor
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 3004
FEBRUARY 16, 2010
5.3.6
Removal of Fan (70)
5.3.6.1
Remove fan shroud per 5.3.5.
5.3.6.2
Remove motor shaft retaining nut and washer.
5.3.6.3
Remove fan hub set screw.
5.3.6.4
Slide fan assembly and spacer from motor shaft.
5.3.7
Removal of Hour Meter
5.3.7.1
Remove wire clamp (1 screw) and detach electrical assembly (4 screws, 4 nuts on bottom of unit).
5.3.7.2
Detach hour meter from bracket (2 screws, 2 nuts on backside). Cut wire ties if necessary to keep terminals attached to back of hour meter.
5.3.7.3
Mark terminal position for proper wire orientation in reassembly.
5.3.7.4
Remove hour meter from assembly.
5.3.8
Removal of Power Relay (10A)
5.3.8.1
Disconnect electrical connections and mark polarity.
5.3.8.2
Remove relay mounting hardware and carefully slide relay from assembly.
5.3.9
Removal of Drive Motor Brushes
5.3.9.1
Remove drive motor fan shroud per 5.3.5.
5.3.9.2
Remove brush cover screen, attaching screws, and washers.
5.3.9.3
Remove brush shunt wire attaching screw from brush rack terminal.
CAUTION: DO NOT ALLOW BRUSH SPRING TO SNAP AGAINST BRUSH OR BRUSH DAMAGE MAY RESLULT.
5.3.9.4
Lift brush spring and slide brush from brush rack.
5.3.9.5
Perform brush inspection per Testing and Fault Isolation, Section 3.4 and Check (Inspection Schedule), Section 7.
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 3005
FEBRUARY 16, 2010
Figure 4 Brush Removal Details
SUBTASK 21-00-09-00-003
5.4
Evaporator Module disassembly procedures (refer to Figure 10003):
5.4.1
Removal of the Evaporator Blower Motor/Wheel (10,20)
5.4.1.1
Disconnect electrical power from blower motor by removing leads from power source.
5.4.1.2
Remove blower motor attachment screws (120) and lock washers (110)
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 3006
FEBRUARY 16, 2010
CAUTION: USE EXTREME CARE TO PREVENT DAMAGE OR BENDING OF BLOWER MOTOR WHEEL.
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OPERATING, SERVICING, AND COMPONENT MAINTENANCE MANUAL(13)
