Shark HNG-3010, Operator'S Manual, Page: 14 / 36

14
HNG SERIES PRESSURE WASHER
OPERATOR’S MANUAL
Periodic flushing of coils is recommended.
1. Fill a container with 4 gallons of water, then add 1 lb.
of deliming powder. Mix thoroughly.
2. Remove nozzle from spray gun assembly and put
spray gun into container. Secure the trigger on the
spray gun into the open position.
3. Attach a short section (3-5 ft.) of garden hose to
machine to siphon solution from an elevated con-
tainer, or add mixture to the float tank. Turn pump
switch on allowing solution to be pumped through
coils and back into the container. Solution should be
allowed to circulate 2-4 hours.
4. After circulating solution, flush entire system with
fresh water. Reinstall wand assembly to spray gun.
Gas Valve Regulator Adjustment:
(See Fig. 5)
Adjustment of the built-in regulator isn’t normally neces-
sary, since it is preset at the factory. However, field ad-
justment may be accomplished as follows:
1. Attach manometer at pressure tap port.
2. Remove regulator adjustment screw cap.
3. With small screwdriver, rotate adjustment screw
clockwise to increase or counterclockwise to de-
crease gas pressure.
4. Replace regulator adjustment screw cap.
Figure 5
Pilot Burner Adjustment:
1. Remove pilot adjustment cap.
2. Adjust pilot key to provide properly sized flame.
3. Replace pilot adjustment cap.
Rupture Disk:
If pressure from pump or thermal expansion should ex-
ceed safe limits, the rupture disk will burst, allowing high
pressure to be discharged through hose to ground. When
the disk ruptures, it will need to be replaced. Torque to
35 ft. lbs.
PROPANE GAS
(Vapor Fuel Only)
General Safety Precautions:
Have a qualified gas service person assist in any gas
burner installation or service. Few maintenance people
or mechanics are knowledgeable in gas controls or re-
lated safety practices. Since propane gas is heavier than
air, unburned propane gas will gravitate to the floor rather
than rise out of the stack. Hence, adequate floor space
and good ventilation are especially important with pro-
pane systems.
Outlet
View
Manifold Pressure
Adjustment Screw
Under Cap
Line to
Pilot Light
On/Off
Switch
Outlet
Pressure
Port
Inlet
Pressure
Port
Inlet
View
Gas Valve Adjustment
Figure 7
Igniter
3/8" to 1/2"
Burner
Pilot
Line To Gas
Valve