Promate PW2700 Operator's Manual page 19

Problem
Water Leaking at spray
gun/Spray wand
connection.
Oil leaking at pump
Pump pulsates
General Info
Gas
Oil
Water
Pressure Adjustment
Pump
By-Pass Mode
*Optional Spare Parts
Probable Cause
Oil seals worn
Loose drain plug
Worn drain plug O-ring
Worn fill plug O-ring
Pump overfilled
Incorrect oil used
Vent plug clogged
Nozzle obstructed
Air In the system
Use fresh high-quality unleaded gasoline (minimum 87 Octane)
Add stabilizer to fuel tank and run engine for 5 minutes before
storage
Pump oil: Use only 40-450ml-weight non-detergent oil
Engine oil: Use only 30-600 ml-weight non-detergent oil
Use only cold water
Do not operate pressure washer with clogged or missing water filler
screen.
Do not operate pressure washer without adequate water supply to
pressure pump. Adequate water supply is a minimum of 20 PSl @
5GPM
Pressure setting is preset at factory
For lowering pressure, refer operation section of this manual
Squeeze spray gun trigger every 2 minutes while engine is running
Do not allow water to freeze in pump
Never leave unit running for more than 2 minutes without
squeezing spray gun trigger. Doing so could damage pump and
void warranty
Pump is equipped with a thermal relief valve. If water overheats,
this valve opens releasing gush of water. Afterwards, the valve
opens releasing gush of water. Afterwards, the valve closes
returning pump to normal operation
Solution
Clean or replace. Call
Customer Service
Tighten drain plug
Inspect and replace O-ring
Inspect and replace O-ring
Check for correct amount
Drain and refill with correct
type and amount
Clean vent plug. Use air hose
to free it of blockage. If
problem persists, replace vent
plug.
Clean Nozzle (See 7-1.
Maintenance)
Squeeze trigger to remove air
19