
4400 Airless Sprayer
ALWAYS wear safety goggles or protective eye-wear when operating the unit!
ASSEMBLY
1. Remove the unit from the crate and open
packing cartons. Check for any damage that
may have occurred during shipment. Advise
factory immediately if you see any damage.
2. Unpack spray gun support tube, spray gun
mounting arm, mounting bracket and spray
shields.
3. Slide one spray shield onto gun support tube
from each end. (Longer part faces upright).
Snug star knobs. (Pic 1)
4. Slide tube with shields into receiving tube on
front of machine and snug star knobs. (Pic 1)
5. Slide mounting arm onto upright and hand
tighten star knob. (Pic 1)
6. Slide the spray gun mounting bracket onto the
support arm and snug star knob. (Pic 1)
7. Place the spray gun (without the hose
attached) in the holder and secure with the
clamp. (Pic 1)
8. Check placement of spray gun in gun holder.
Spray gun should be located so that there is
room between the trigger and lifting bar that
lifts trigger (1/8”-3/16”). This will allow the
gun to shut off completely when the trigger is
released. (Pic 1)
9. There should also be enough room to turn the
trigger lock sideways. If the trigger lock will
not turn, release the gun clamp and slide gun
backward until you can turn the trigger lock.
Re-clamp gun. NOTE to release trigger lock:
Push down on trigger lock and then turn the
trigger lock to the spray position. (Pic 1)
10. Attach one end of the spray hose to the pump
outlet with a ¾” wrench and the other end to
the spray gun. You will need two wrenches
(3/4” and 9/16” or two adjustable wrenches)
to secure the hose on the spray gun as it has a
swivel fitting. Make both connections tight.
(Pic 3)
11. Always check the oil level in the engine before
starting (SAE 10W30).
12. Make sure that the static chain is contacting
the ground (Attached to the bottom side of
the frame).
13. If unit was shipped with suction hose removed
at the pump. (Garden hose type fitting).
Depress Inlet Valve Stem to ensure it moves
freely. Attach suction hose. Hose fitting may
be hand tightened. You may also need to
perform this operation any time the pump
does not want to prime. (Pic 2)
Pic 1
Pic2
Pic 3
Receiving
tube
Spray gun
support
tube
Spray
Shields
Star knob
Mounting