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9.3.7.2
Attach hour meter to bracket (2 screws, 2 nuts on backside). Wire tie as necessary
9.3.7.3
Attach motor wire clamp (1 screw) and electrical mounting assembly (4 screws, 4 nuts on bottom of unit).
9.3.8
Assembly of Power Relay (10A)
9.3.8.1
Carefully slide power relay into position and attach using mounting hardware.
9.3.8.2
Connect electrical connections and install boots for protection.
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 7006
FEBRUARY 16, 2010
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 7006
FEBRUARY 16, 2010
9.3.9
Assembly of Belt Cover (30)
9.3.9.1
Position belt cover on assembly and attach with screws (refer to table 1, section 1.3 for torque specifications).
Figure 5 Belt Tensioning Reference
Tensioning Information: (Sonic Tension Meter 507C, www.gates.com)
New Belt
Used Belt
Min
Max
Min
Max
Belt Frequency: (Hz)
137
143
114
122
Sonic Tension Meter: (N)
12
136
86
99
Table 4 Gates Sonic Tension Meter Data
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 7007
FEBRUARY 16, 2010
SUBTASK 21-00-09-40-003
9.4
Evaporator Module assembly procedures (refer to Figure 10003):
9.4.1
Assembly of Blower Motor/ Wheel (10,20)
9.4.1.1
Position blower wheel (20) on blower motor (10) shaft. Ensure that there is a gap of 0.20” between motor and back of blower wheel.
CAUTION: APPLY THREAD SEALANT SPARINGLY TO MALE FITTING THREADS STAYING CLEAR OF FIRST 2-3 THREADS.
9.4.1.2
Apply a drop of thread sealant to the set screw threads. Tighten set screw (refer to table 1, Section 1 for torque specifications), insuring that the screw is located on flat part of motor shaft.
9.4.1.3
Sparingly apply a thin bead of RTV to blower motor mounting plate.
9.4.1.4
Carefully install blower motor/wheel into blower motor scroll (30) and attach with blower motor attachment screws (120) and flat washers (110). Refer to table 1, Section 1 for torque specifications.
9.4.1.5
Ensure that blower wheel does not hit or rub against blower scroll by rotating wheel by hand, and verifying sufficient clearance.
9.4.1.6
Connect blower motor to electrical power and perform a functional test (Section 3). Wire hookup is as follows (refer to Table 5):
Black
Ground
Orange
+28 VDC, Hi Speed
Red
+28 VDC, Low Speed
Table 5 Blower Motor Electrical Connections
9.4.2
Assembly of Expansion Valve (60)
9.4.2.1
Using a wire brush and cleaning solvent, completely remove old thread sealant. Apply a thin layer of thread sealant primer to fitting threads.
CAUTION: APPLY THREAD SEALANT SPARINGLY TO MALE FITTING THREADS STAYING CLEAR OF FIRST 2-3 THREADS.
9.4.2.2
Set new valve adjustment screw to same position as failed valve.
9.4.2.3
Apply 1-2 drops of thread sealant to threads of expansion valve and to evaporator header nut threads.
CAUTION: TAKE EXTREME CARE NOT TO GET REFRIGERANT OIL ON FITTING THREADS.
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 21-00-08
Page 7008
JULY 2/ 2007
9.4.2.4
Apply thin film of refrigerant oil to expansion valve flare surface and a very small amount to the O-rings to prevent damage.
9.4.2.5
Connect expansion valve to coil header fitting. Refer to table 1, Section 1 for torque specifications.
9.4.2.6
Route expansion valve bulb line along evaporator escutcheon and attach bulb to evaporator coil outlet header. Bulb should be located on header at 3 O’clock position.
9.4.2.7
Cover bulb with insulation and secure with tie straps 2 places.
9.4.2.8
Leak check per Testing and Fault Isolation, Section 3.5 and then evacuate and charge system per Servicing, Section 13.
SUBTASK 21-00-0940-004-
9.5
Condenser Blower assembly procedures (refer to Figure 10002):
9.5.1
Assembly of Shroud Assembly (30)
9.5.1.1
Ensure that shroud assembly and coil assembly mounting surface areas are thoroughly clean and free of any dirt or other foreign matter (refer to Cleaning, Section 6).
9.5.1.2
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OPERATING, SERVICING, AND COMPONENT MAINTENANCE MANUAL(22)
