Nomenclature for Figure 44
1)
Retention Ring
19)
Pump Coupling
2)
Blast Tubes
20)
Pump Coupling Adapter
3)
Blower Housing
21)
Motor Mounting Ring
4)
Housing Back Plate
22)
Motor Mounting Nut
5)
Blower Wheel
23)
Motor Mounting Ring Bolt
6)
Blower Motor
24)
Tube Housing Unit
7)
Pilot Ignition Transformer
25)
Baffle Ring
8)
Fuel Supply Pump
26)
Retention Ring Screw
9)
Low Fire Regulating Valve
27)
Weight
10)
Main Oil Valve
28)
Aluminum Arm
11)
Three-Way Oil Valve
29)
Blade Mounting Screw
12)
Return Oil Valve
30)
Damper Blade
13)
Damper Cylinder
31)
Crank Arm
14)
Valve Junction Box Cover
32)
Crossover Link
15)
Damper Axle
33)
Aluminum Arm
16)
Cylinder Mounting Bracket
34)
Cover Plate Mounting Screw
17)
Damper Screen
35)
Return Oil Pressure Regulator
18)
Tube Housing Stud
36)
Cylinder Mounting Nut
37)
Back Plate Sight Glass
38)
Pump Mounting Screw
57. Blower
a
Removal The blower consists of a blower motor and blower wheel Inserted into the blower housing
1
Remove electrical connections at blower motor junction box Tag wires for Identification
2
Remove six nuts from studs in blower housing (Ref Fig 47)
3
Remove blower motor and blower wheel from blower housing
NOTE: Pump coupling to motor adapter will be disconnected at this time. This consists of 1/2 of the
coupling installed on the blower motor shaft When removing this coupling from shaft, mark shaft for
reinstallation Refer to Fig 44, Item 19
b Disassembly Refer to Fig 44 to disassemble the blower components
1.
Remove coupling adapter from blower motor shaft.
2
Remove blower wheel from blower motor
c.
Cleaning. Inspection and Repair
1.
Clean all parts with an approved cleaning solvent and dry thoroughly.
2.
Inspect the blower housing for cracks, dents, breaks, and elongated mounting holes
3
Inspect the mounting ring (Fig 44, Item 21). damper blades (Fig 44. Item 30), and linkage (Fig 43) for
cracks, breaks. and other damage
4.
Inspect the mounting hardware for cracks, breaks and damaged threads.
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