12
C. Remove the end cap.
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RUBBER BALL REPLACEMENT
A. Pull the clear Fastening / Wear Ring down, away from the ball. Be
careful not to damage the ring.
B. Peel the ball off the engine unit by lifting it from the seal lip.
C. Replace the rubber ball if necessary and then slip the fastening ring back
over the top. The four small pins should be facing towards the engine unit.
ENGINE UNIT REPLACEMENT
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B. Align the two side nipples of the engine unit with the holes in the sides of
the main body.
C. Insert the engine unit and snap two nipples in to the holes.
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E. Firmly screw the back nut back onto the engine unit in a clockwise
direction.
C
A
D
B