16
The primary function of the follower plate is to prevent the funneling effect that may occur during
the replenishment of the grease piston in the bottom of the pump. The follower plate is being
held in place over a retention spring, by the guide rod.
The guide rod guides the follower plate up and down during use and provides an escape for
lubricant and air during the filling process. The top of the guide rod is cross drilled to provide an
escape for both air trapped underneath the follower plate and for excess lubricant. Internal
galleries guide air down the guide rod and out of the pump. The
highlighted area on the right is the location lubricant exits the
over-flow. It is important to refill the reservoir past the cross-
drilled holes on the guide rod when air is trapped under the
follower plate.
Figure 1214
Left side view of pneumatic
pump with overflow circled
To Next Page
Loading...