4250 Airless Sprayer™
ALWAYS wear safety goggles or protective eye-wear when operating the unit
!
4250™ Manual / 3947.0816
CLEANING PROCEDURE FOR EXTENDED PERIODS OF NON-USE
1.
Clean as instructed in cleaning procedure.
2.
Pick up suction filter and hold with bottom
facing up.
3.
Pour 2 ounces of pump protector into suction
filter so there is approximately 2 inches of fluid
showing in inlet hose.
4.
Leave engine off and pull recoil start until you
see fluid in return hose.
5.
Unit may now be stored with fluid remaining
inside hose and pump.
CLEANING PROCEDURE FOR WINTER (FREEZING) STORAGE
1.
Clean as instructed in cleaning procedure and
then place ½ bottle of pump protector in pail.
2.
Place spray knob in prime position and run
pump until pump protector is seen flowing from
return hose.
3.
Turn spray knob to spray position and trigger
gun until pump protector sprays from gun.
4.
Turn spray control knob to prime position, turn
off pump and trigger spray gun to release
pressure.
5.
Remove as much fuel from the engine gas tank
as you can.
6.
Run engine until it runs out of gas.
7.
Turn Spray knob to prime position.
8.
Disconnect paint hose from pump and gun
then, drain hose.
9.
Unit may now be stored in freezing
temperatures.
10.
Drain and change engine oil in the spring.
MAINTENANCE
ITEM
CHECK
MAINTENANCE ACTION
Engine Oil
Before each use
Change oil after first 20 hours of
operation and then, every 100 hours
Spark Plug & Air Filter
Every 4 Months
Clean or change as needed
Wheels
Lubricate weekly
Grease with high quality axle
lubricant
Spray Gun Clamp and Cable
Check Weekly
Spray with silicone spray
Spray Gun Filter
Check Monthly
Replace if filter becomes clogged
Spray Pump
Before and after each use
Use pump protector if the unit will
not be used for more than one day
Suction Filter
Before each use
Replace as needed or when clogged
Suction Tube
Before each use
Replace if needed or has cuts
Bypass (re-circ) hose
Before each use
Replace if needed or has cuts
Spray Hoses
Before each use
Replace if needed or has cuts
Spray Tip
Before each use
Replace if spray pattern is uneven
Outlet Push Button
Before each use
Replace every 1000-1500 gallons or if
leaking
Outlet Valve
If pump does not prime
Replace every 500-1000 gallons
Inlet Valve
If pump does not prime
Every 500-1000 gallons
Prime/Spray Valve
If pump will not toggle between
Prime/Spray
Every 1000-1500 gallons or if it stops
working
