SERVICE PROCEDURES
Continued
6.Replace filter end cover.
7.Replace fan guard and upper shell. IMPORTANT: Do not oil filters.
Air Intake Filter
Filter
End
Cover
Lint Filter
Air Output Filter
Figure 16 - Air Output, Air Intake, and
Lint Filters, 115/165 Models Only
PUMP PRESSURE ADJUSTMENT
1.Remove pressure gauge plug from filter end cover (see Figure 17).
2.Install accessory pressure gauge (part number HA1180).
3.Start heater (see Operation, page 6). Allow motor to reach full speed.
4.Adjust pressure. Turn relief valve to right to increase pressure. Turn relief valve to left to decrease pressure. See specifications correct pressure for each model (see Figure 18).
5.Remove pressure gauge. Replace pressure gauge plug in filter end cover.
Pressure |
|
Gauge | Relief |
Plug | |
| Valve |
FUEL FILTER
1.Remove side cover screws using 5/16" nut- driver.
2.Remove side cover.
3.Pull upper fuel line off fuel filter neck (see Figure 19 or 20).
4.Carefully pry bushing, fuel filter, and lower fuel line (115/165 Models only) out of fuel tank (see Figure 20).
5.Wash fuel filter with clean fuel and replace in tank.
6.Attach upper fuel line to fuel filter neck.
7.Replace side cover.
Fuel Filter and
Bushing
Upper Fuel Line
Side Cover
Figure 19 - Fuel Filter Removal, 40/55/70 Models
Fuel Filter, Bushing,
and Lower Fuel Line
Figure 17 - Pressure Gauge Plug | |||
| Removal (70 Model Shown) | ||
| Pump | Pressure | |
Model | Pressure | ||
Gauge | |||
40 | 3.0 PSI | ||
| |||
55 | 3.4 PSI |
| |
70 | 4.7 PSI |
| |
115 | 5.1 PSI |
| |
165 | 5.6 PSI |
| |
Side
Cover
Upper Fuel Line
Figure 20 - Fuel Filter Removal, 115/165 Models
Figure 18 - Adjusting Pump Pressure (70 Model Shown)
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