Pump Pressure Adjustment; Fuel Filter - Desa H.S.I. Serie Manual Del Propietário

SERVICE PROCEDURES
Continued
6. Replace filter end cover.
7. Replace fan guard and upper shell.
IMPORTANT: Do not oil filters.
Lint Filter
Air Output Filter
Figure 12 - 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 13).
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 14).
5. Remove pressure gauge. Replace pressure
gauge plug in filter end cover.
Pressure
Gauge
Plug
Figure 13 - Pressure Gauge Plug
Removal (40/55/60/70 Models Shown)
Pump
Model Pressure
40 3.0 PSI
Pressure
55 3.4 PSI
Gauge
60 3.4 PSI
70 4.7 PSI
110 5.1 PSI
115 5.1 PSI
155 5.2 PSI
165 5.6 PSI
200 6.2 PSI
Figure 14 - Adjusting Pump Pressure
(40/55/60/70 Models Shown)
10
Air Intake Filter
Filter End
Cover
Relief
Valve
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FUEL FILTER

(For 40/55/60/70/110/115/155/165 Models
Only)
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 15 or 16).
4. Carefully pry bushing, fuel filter, and lower
fuel line (110/115/155/165 Models only) out
of fuel tank (see Figure 16).
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
Side Cover
Figure 15 - Fuel Filter Removal,
40/55/60/70 Models
Fuel Filter, Bushing,
and Lower Fuel Line
Side
Cover
Figure 16 - Fuel Filter Removal,
110/115/155/165 Models
Upper Fuel Line
Upper Fuel Line
114008-01A