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CAUTION
RISK OF UNIT DAMAGE!
DO NOT OVERTIGHTEN THE
UNLOADER. BREAKAGE WILL
RESULT IN IMMEDIATE LOSS OF
WATER PRESSURE AND COSTLY
REPAIRS.
FIGURE A
12
INSTALLATION & PREPARATION
UNLOADER:
1. The unloader valve on your machine is equipped with an adjustment knob (6)
to adjust the pressure. Should less pressure be required, simply turn the
adjustment knob counterclockwise. To set back to maximum, turn adjustment
knob completely clockwise. DO NOT OVERTIGHTEN!
POWER CORD CONNECTION:
1. Make certain the motor switch is in the "OFF" position.
2. Ensure electrical supply is 120Volt / 15 Amp / 60 Hertz / Single-phase. (See
figure A)
3. Each time the GFCI is plugged into an outlet, test the GFCI according to
instructions on the GFCI. DO NOT use the unit if the test fails!
4. Ensure the area between the pressure washer cord and outlet is kept dry.
5. Insert the male plug into a grounded AC outlet. DO NOT use an adapter.
DO NOT remove the grounding plug!!
PRE-START INSPECTION PROCEDURES:
1. Before starting the unit, perform the following procedures:
a. Check the oil level in the pump.
b. Inspect the inlet water strainer. Clean or replace if necessary.
See "Water Supply", #2, pg. 11.
c. Check all hose connections to ensure they are securely tightened.
See "Water Supply", #3, pg. 11.
d. Inspect for system water leaks and oil leaks.
Be sure that all damaged parts are replaced and that the
mechanical problems are corrected prior to operation of the unit.
If you need service, contact a Nilfisk-Advance Authorized Service
Center.
e. Inspect high pressure hose and for kinking, cuts or leaks.
If a cut or leak if found, DO NOT USE HOSE OR CORD!
Replace hose before starting unit.
See "Miscellaneous Safety Precautions" #6, pg. 6.
Be sure that all damaged parts are replaced and that the
mechanical problems are corrected prior to operation of the unit.
f.
Inspect electrical cord for kinking or cuts. If a cut is found, DO NOT
use electrical cord! Replace cord before starting the unit.
Nilfisk-Advance Select Spray 1250E Operator's Manual
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