Master Lock 150000 BTU/Hr, 70000 BTU/Hr, 100000 BTU/Hr owner manual Specifications, Fan

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 10).

2.Use 1/8" allen wrench to loosen setscrew 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 25).

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.

SPECIFICATIONS

Setscrew Fan

Motor

Shaft

Figure 24 - Fan, Motor Shaft, and Setscrew Location

Fan

Flush

Motor

Shaft

Setscrew

Figure 25 - Fan Cross Section

Output Rating (BTU/Hr)	70,000	100,000	150,000
Fuel	Use Only Kerosene or No. 1 Fuel Oil
Fuel Tank Capacity
(U.S. Gal./Liters)	5.0/18.9	9.0/34.1	13.5/51.1
Fuel Consumption
(Gal. Per Hr./Liters Per Hr.)	.52/1.97	.78/2.95	1.10/4.16
Electric Requirements	220 V/60 Hz (Same All Models)
Amperage (Normal Run)	2.0	2.0	2.0
Hot Air Output (CFM/CMM)	250/7.1	490/13.9	500/14.2
RPM	3450	3450	3450

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