Repair
Disconnect the Air Motor
1. Follow the Pressure Relief Procedure, page 8.
2. See Figure 11, page 17.
3. Release the top clamp (5).
4. Tilt the air motor and unhook the shaft from the
displacement rod. Lift the air motor up and off
the rest of the pump.
5. Release the bottom clamp (5). Remove
connector (3) and gasket (2).
6. Remove the bung adapter clamp.
7. Pull the displacement pump straight up and out
of the container.
Air Motor Disassembly
1. Use flats on the base (118) to clamp the air motor
into a vise.
2. Remove the motor cover (10).
3. Remove cap (103). Use a large channel-lock or
strap wrench on the cap and hold the cylinder
(101) with a strap wrench to prevent distortion to
the cylinder. Remove gasket (102) from inside of
the cap. Inspect the spring (104) under the cap.
NOTE: Use a screwdriver to pop out the spring
if it must be replaced.
4. Use a strap wrench to remove the cylinder (101).
Inspect for scoring or damage.
Figure 2
3A2977K
11
