Cleaning A Clogged Tip; Shutdown And Care - Graco Ultra 1500 Mark V 236-401 Instructions-Parts List Manual

Cleaning a Clogged Tip

WARNING
Follow these precautions to reduce the risk of a
serious injury when cleaning a clogged tip.
Do not hold a hand, a body, or a rag in front of the
spray tip. Always point the gun toward the ground
or into a waste container when triggering the gun to
see if the spray tip is unclogged.
DO NOT try to "blow back inch fluid; this is NOT an
air spray sprayer.
1. Release the gun trigger.
2. Lock the gun trigger safety (B).
3. Rotate the HD RAC IV handle 180 . See Ref. A in
Fig. 4.
4. Unlock the gun trigger safety (C).
5. Trigger the gun into a waste container.
6. Lock the gun trigger safety again. See Ref. A in
Fig. 4.
7. Rotate the tip handle to the original position.
8. Unlock the gun trigger safety.
9. If the tip is still clogged, lock the gun trigger safety,
shut off and unplug the sprayer, and open the
pressure drain valve to Relieve the pressure.
Remove the spray tip and soak it in solvent. Do
not scrape or chip debris from the spray tip.
10. Resume spraying.
The tip handle (A) is shown in the spraying
position. Rotate the tip handle 180 in the
direction of the arrow for clearing a clog.
Trigger safety shown in the locked position.
Trigger safety shown in the unlocked position.
A
Fig. 4
Operation
B
C

Shutdown and Care

1. Keep the wet–cup (216) 1/3 full with Graco Throat
Seal Liquid. The liquid helps prevent fluid from
building up on the piston rod. Fluid build–up
causes the packings to wear prematurely. Always
relieve the pressure before checking, filling or
tightening the wet–cup. See Fig. 5. Remove the
plug from the wet-cup. Tighten the wet cup, which
is also the packing nut, just enough to stop leak-
age. If you over–tighten the wet–cup, the packings
may bind and wear out more quickly. Use a screw-
driver and a light hammer to adjust the wet-cup.
2. Clean the fluid filter (48) often and whenever the
sprayer is stored. See manual 307–273 for the
cleaning procedure.
3. After each 100 hours of operation, fill the cavity of
the connecting rod (D) with motor oil. First Relieve
the pressure and then remove the front cover. See
Fig. 5.
D
216
Fig. 5
4. When you shut off the sprayer for a short time,
leave the pump in the fluid–supply container, re-
lieve the pressure, and clean the spray tip.
5. Before you store the sprayer, flush it thoroughly.
Always use mineral spirits for the final flushing.
Relieve the pressure.
6. To protect the hose, coil it and hang it on the cart
handle when storing the sprayer.
48