3
Unloader Valve Instructions
The Unloader is factory set to a maximum of 2000
psi [138 BAR]. Do not tamper with the Unloader
Valve settings or with the Locking Ring. Hydraulic
System damage may result if the Unloader is
adjusted outside the range of 2000 psi [138 BAR].
The Unloader Valve is factory tested and preset to
2000 psi [138 BAR]. Adjustment is necessary only if the
unloader is not functioning properly.
1. For priming, the Spray Gun and Hose Assembly (Kit
8000-0030) should be detached from the pump at
the Quick Disconnect (See Figure 1).
2. Start the Pump and run it until it is fully primed, with
water flowing freely out of the Quick Disconnect.
Then, stop the Pump and reattach the Spray Gun
and Hose Assembly at the Quick Disconnect (See
Figure 1).
3. Pull the Gun Trigger, restart the Pump, and observe
the pressure. The Hydraulic System and/or Bleeder
Bypass Screw may require adjustment to obtain the
proper pressure of 2,000 psi [138 BAR] (Refer
Hydraulic System Operation for further information).
4. Open and close the Pressure Wash Gun several
times to check the unloading pressure and Unloader
Valve function.
5. The standard Pressure Washer is equipped with an
adjustable cleaning angle nozzle. The cleaning
angle may be varied throughout its range by rotating
the black outer body clockwise (CW) or
counterclockwise (CCW).
6. Your Pressure Washer is equipped with the optional
Detergent Injection System. The nozzle must be set
in Low Pressure Mode to activate the injector and
draw soap. For rinsing, the nozzle should be set in
High Pressure Mode. Pushing the black nozzle
body forward places the nozzle in the Low Pressure
Mode. Pulling the black nozzle body back places the
nozzle in the High Pressure Mode.
Before Starting Up
Figure 1
Hydraulically-Driven Pressure Washer Hookup
Fresh Water
Flooded Section
Municipal Water
Supply Access
3/4" Hose
Hi-Lo
Spray Nozzle
3/4" Garden Hose
Adapter
3/4" Strainer
80 Mesh
P/N 3350-0035,
3350-0045,
3350-0035A
or equivalent
Hydraulic Quick
Disconnect
matches
female end
on Kit 8000-0030 &
8000-0049
5,000 psi
Gauge
Hydraulic Input
1/2" NPT (F) Pressure Port
3/4" NPT (F) Tank Port
Four
25/64 Dia.
Holes
Thermal Relief Valve
Spray Gun
and Hose
• Gun, Lance, Nozzle & Hose Assembly includes 50'
pressure hose, gun, wand, nozzle, and female quick
disconnect.
• Tank is mounted even or above the pump.
Mount the tank higher if the inlet hose length is over 15 ft.
• Never run the pump dry.
• If suction inlet hose is more than four feet long, use next
larger size.
Full-Flow, 3/4"
Shut-Off Valve
Figure 2
Check oil level
Check that the oil is at the correct level using the
Dipstick, and topping off if necessary (See Figure 2). Use
Hypro Oil (part no. 2160-0038). Hypro oil is specially
formulated, high grade, non-detergent, SAE 30 weight oil
designed to prolong Pump life.
Содержание HYPRO 1802C
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