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104252
PORTABLE FORCED AIR HEATER
70,000 AND 100,000 BTU/HR
Fan
IMPORTANT:
Remove fan from motor
shaft before removing motor from heater.
The weight of the motor resting on the fan
could damage the fan pitch.
1. Remove upper shell (see page 8).
2. Use 1/8" allen wrench to loosen set-
screw which holds fan to motor shaft.
3. Slip fan off motor shaft.
4. Clean fan using a soft cloth moistened
with kerosene or solvent.
5. Dry fan thoroughly.
6. Replace fan on motor shaft. Place fan
hub flush with end of motor shaft (see
Figure 22).
7. Place setscrew on flat of shaft. Tighten
setscrew firmly (40-50 inch-pounds/
4.5-5.6 n-m).
8. Replace fan guard and upper shell.
Fan
Figure 21 - Fan, Motor Shaft, and Setscrew
Location
Motor
Shaft
Fan
Figure 22 - Fan Cross Section
Output Rating (kW) 20,5 29,3
(Btu/Hr) 70,000 100,000
Fuel Use Only Kerosene or No. 1 Fuel Oil
Fuel Tank Capacity
(U.S. Gal./Liters) 5.0/18.92 9.0/34.06
Fuel Consumption
(Gal. Per Hr./Liters Per Hr.) .52/1.97 .73/2.76
Electric Requirements 230 V/50 Hz 230 V/50 Hz
Amperage (Normal Run) 2.0 2.0
Hot Air Output (CFM/CMM) 225/6.36 425/12
RPM 2850 2850
SPECIFICATIONS
Setscrew
Motor
Shaft
Flush
Setscrew
SERVICE
PROCEDURES
Continued