68
Mix Pump Assembly
1. Inspect the rubber pump parts. O-rings
and gasket must be in 100% good
condition for the pump and entire machine
to operate properly. The o-rings and
gasket cannot properly serve their
intended function if nicks, cuts, or holes in
the materia l are present.
Replace any defective parts immediately
and discard the old.
2. Assemble the piston. Slide the red o-ring
into the groove of the piston. DO NOT
lubricate the o-ring. (See Figure 134.)
Figure 134
3. Apply a thin layer of lubricant to the inside
of the pump cylinder at the retaining pin
hole end. (See Figure 135.)
15130
L
U
B
E
R
Figure 135
4. Insert the piston into the retaining pin hole
end of the pump cylinder. (See
Figure 136.)
15118
Figure 136
5. Assemble the valve cap. Slide the red
o-ring into the groove of the valve cap.
DO NOT lubricate the o-ring. (See
Figure 137.)
15109
Figure 137
6. Slide the pump valve gasket into the
holes on the cap. DO NOT lubricate the
gasket. (See Figure 138.)
15110
Figure 138
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