TROUBLE SHOOTING
Pump continually cycles.
•Check for empty material supply. Disconnect the air (from the pump) replenish material supply.
•Check to see if the connecting rod has disassembled from the mat- ing rod. See assembly of lower pump end (figure 3).
•The (48) ball may be wedged or sticking open in the foot valve body. NOTE: Replace the ball or the foot valve if either are damaged.
•Check for worn or damaged (39) upper piston.
Material on one stroke only (fast downstroke).
•The ball in the foot valve may not be checking or sealing properly. Remove the ball from foot valve and inspect. If the ball or foot valve is damaged replace with new parts. If the ball or foot valve is not dam- aged, thoroughly clean both parts and reassemble (See lower pump end instructions).
Material on one stroke only (fast upstroke).
•Check for worn or damaged (44) lower material piston. Replace pis-
ton (See lower pump end instructions). See Figure 6.
Material leakage out the top of the pump body.
•Check for worn or damaged (39) upper piston. See lower pump end instructions and replace the upper piston.
•Remove (48) ball from the (49) foot valve body. Thoroughly clean and replace (see figure 6).
Air leakage out of the exhaust holes. (See Air Motor Instructions)
•Check to see if the (9) valve plate is loose or has disassembled from the (11) valve spacer.
•Check for worn or damaged (10) piston assembly.
•Check for worn or damaged (19) “O” ring.
•Check for worn or warped (9) valve plate.
•Worn or damaged (14) “O” ring. Replace (14) “O” ring.
OPTIONAL ACCESSORIES
61113 MOUNTING BRACKET
Figure 7
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