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 15 - Air Output, Air Intake, and Lint Filters, 110/115/155/165/200 Models Only
PUMP PRESSURE ADJUSTMENT
1.Remove pressure gauge plug from filter end cover (see Figure 16).
2.Install accessory pressure gauge (part num- ber HA1180).
3.Start heater (see Operation, page 5). 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 17).
5.Remove pressure gauge. Replace pressure gauge plug in filter end cover.
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 18 or 19).
4.Carefully pry bushing, fuel filter, and lower fuel line (110/115/155/165/200 Models only) out of fuel tank (see Figure 19).
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 | Upper Fuel Line |
Bushing |
Side Cover
Figure 18 - Fuel Filter Removal,
40/50/55/60/70 Models
Fuel Filter, Bushing,
and Lower Fuel Line
Pressure
Gauge
Plug
Relief 
Valve
Side
Cover
Figure 16 - Pressure Gauge Plug
Removal (40/55/60/70 Models Shown)
| Pump |
| |
Model | Pressure |
| |
40 | 3.0 PSI | Pressure | |
50 | 3.4 PSI | ||
Gauge | |||
55 | 3.4 PSI | ||
60 | 3.4 PSI |
| |
70 | 4.7 PSI |
| |
110 | 5.1 PSI |
| |
115 | 5.1 PSI |
|
1555.2 PSI
1655.6 PSI
2006.2 PSI
Figure 17 - Adjusting Pump Pressure
(40/50/55/60/70 Models Shown)
Upper Fuel Line
Figure 19 - Fuel Filter Removal,
110/115/155/165/200 Models
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