Master Lock 100000 BTU/Hr, 150000 BTU/Hr Pump Rotor, Rotor Location, 70,000 BTU/Hr Model

Page 14

Pump Rotor

(Procedure if rotor is binding)

1.Remove upper shell (see page 10).

2.Remove filter end cover screws using 5/16" nut- driver.

3.Remove filter end cover and air filters.

4.Remove pump plate screws using 5/16" nut- driver.

5.Remove pump plate.

6.Remove rotor, insert, and blades.

7.Check for debris in pump. If debris is found, blow out with compressed air.

8.Install insert and rotor.

9.Check gap on rotor. Adjust to .003"/.004" (.076/.101 mm) if needed (see Figure 22).

Note: Rotate rotor one

full turn to insure the gap is

.003"/.004" (.076/.101 mm) at tightest position. Adjust if needed.

10.Install blades, pump plate, air filters, and filter end cover.

11.Replace fan guard and upper shell.

12.Adjust pump pressure (see page 12).

Note: If rotor is still binding, proceed as follows.

13.Perform steps 1 through 6 above.

14.Place fine grade sandpaper (600 grit) on flat surface. Sand rotor lightly in “figure 8” motion four times (see Figure 23).

15.Reinstall insert and rotor.

16.Perform steps 10 through 12 above.

14

Blade

Air

Pump Intake

Plate Filter

Filter End

Cover

Fan Guard

 

Insert

 

Rotor

 

Air Output

50 ROTOR

Filter

PFA/P 056

Figure 20 - Rotor Location, 70,000 BTU/Hr Model

Pump

Blade Plate

Air

Intake

Filter

Filter End

Cover

Fan Guard

Insert

 

Rotor

 

Air

150 ROTOR

Output

PFA/P 059

 

Filter

Figure 21 - Rotor Location, 100/150,000 BTU/Hr Models

Gap Adjusting

Screw

 

.003"/.004"

 

(.076/.101 mm) Gap

 

Measured With

 

Feeler Gauge

 

Sandpaper

Blade

Rotor

 

Gap

 

Adjusting

 

Screw

 

Figure 22 - Gap Adjusting

 

Screw Locations

Figure 23 - Sanding Rotor

101585

Image 14
Contents Portable Forced AIR Heaters Contents Safety Information Carbon monoxide poisoning may lead to deathProduct Identification 70,000 BTU/Hr ModelUnpacking Assembly Tools NeededFuels TheoryOperation Ventilation Operation To Start HeaterTo Restart Heater Operation Storage Preventative Maintenance ScheduleTo Stop Heater Observed Fault Possible Cause TROUBLE- ShootingFuel Filter Service ProceduresUpper Shell Removal Spark Plug Fuel Filter Removal, 100/150,000 BTU/Hr ModelsPump Pressure Adjustment Air Output, Air Intake, and Lint FiltersNozzle Removing Burner HeadPump Rotor Rotor Location, 70,000 BTU/Hr ModelSpecifications FanParts Breakdown 70,000 BTU/HrParts List KEY Part Number Description QTY100,000 BTU/Hr M10908-2 Screw, #6-32 x 3/8 Illustrated Parts Breakdown 150,000 BTU/HrPart number and description of the desired part Wheels and Handles for Wiring Diagrams AccessoriesWarranty and Repair Service Certificate of General Equipment Limited 90 DAY Warranty