PAGE 6 OF 6 613100-X
TROUBLE SHOOTING
No material (stalled pump).
•Obstructed (R) spray tip. Remove spray tip and clean.
•Obstructed(F) hose assembly. Remove control handle and operate
pump until line is clear.
•Obstructed (G) control handle assembly.Disassemble and clean.
No material (Pump continually cycles).
•Emptymaterial supply. Disconnect the air. Replenish material sup-
ply.Connect the air.Open (G) control handle assembly until pump is
primed.
•90609Retaining screw (See Figure 3) disassembled from (3) plung-
er.(Figure 4). Connect the retaining screw to the plunger. (Follow
instructions for assembly of air motor to lower pump end).
•Damaged (H) lower suction tube. Replace suction tube.
•Loose (J) hose clamp assembly on (K) tube. Tighten clamp.
Material on One Stroke only (Fast Downstroke).
•(20) Ball in (21) foot valve not seating, or damaged (19) “O” Ring.
Removethe foot valve. Remove the ball from the foot valve. Clean
andinspect ball and foot valve. If either ball or foot valve is damaged,
replace, also replace (19) “O” Ring if damaged. (See Lower Pump
End Instructions).
Material on One Stroke only (Fast Upstroke).
•Worn (13) “O” Ring. Replace with new (13) “O” Ring. (See Lower
Pump End Instructions).
Material Leakage Out the Oil Daily Holes in Pump.
•Worn(5) packing. Replace worn packing. (See Lower Pump End In-
structions).
Air leakage out of the Main Exhaust.
•Worn 90796 valve insert. Replace the valve insert. (See Air Motor
Instructions).
•Loose 65027 Piston Assembly.Tighten piston assembly. (See Air
Motor Instructions).
•Damaged65027 Piston Assembly. Replace piston assembly. (See
Air Motor Instructions).
•Warpedor worn 65028 valve plate and pin assembly. Replace valve
plate and pin assembly.
Continual leakage out of the bleeder hole in the Head Assembly.
•Worn91207 “O” Ring or 91007 Seal. Replace the “O” Ring and Seal.
(See Air Motor Instructions).
Air leakage out of the bleeder hole on the Air Motor Assembly
downstroke.
•WornY186-51 “U” cup. Replace the “U” cup. (See Air Motor Disas-
sembly Instructions).
Air leakage out of the Oil Daily Holes in the Pump Section.
•WornY325-210 “O” Ring. Replace the “O” Ring. (See Air Motor In-
structions).
Material leakage around the Control Handle.
•Loose76947 gland. Tighten packing screw. (SeeC ontrolH andleIn -
structions).
•Worn77516 packings. Replace packings. ( See Control HandleIn -
structions).
OPTIONAL ACCESSORIES
61113MOUNTING BRACKET
640081-B STRAP WRENCH
FIGURE 5
PN97999-92