11/06/20
Page 5
Patriot
®
RC50
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Using a small screwdriver, remove the o-ring from the bit retaining rings.
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Break the backhead loose from the case.
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Remove the connector tube from the backhead. Use a small screwdriver to remove
the o-rings from the connector tube inside diamter.
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Using a rubber mallet, tap the bottom of the collection tube until it protrudes out the
backhead. Grab with both hands and remove.
•
When the collection tube is removed, unscrew the backhead from the case.
CAUTION
REMOVING THE BACKHEAD ALSO REMOVES THE FEED TUBE, CHECK
VALVE SPRING, CHECK VALVE AND CHECK VALVE SEAT. TWO PINS
WITH A HOLE IN THE CENTER HOLD THESE PARTS IN THE BACKHEAD.
•
To remove the feed tube, check valve spring, check valve and check valve seat
from the backhead, stand the backhead on the end so the feed tube is pointing up
and vertical. Place a scribe in the pin hole. While pushing the feed tube into the
backhead to relieve any force created by the check valve spring, wiggle the scribe
as you pull the pin from the backead. Repeat to remove other pin.
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Remove the check valve seat, check valve, check valve spring, and feed tube from
the backhead. Using a screwdriver, remove the backhead bearing from the groove
located on the outside diameter of the backhead. Remove the backhead o-ring from
the backhead.
•
Using a small screwdriver, pick the feed tube o-ring from the outside diameter and
two collection tube o-ring rings from the inside diameter of the feed tube.
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Using a small screwdriver, pick the check valve seat o-ring from the outside diameter
and the collection tube o-ring form the inside diameter of the check valve seat.
•
Using the 2" (51 mm) diameter brass rod from the chuck end of the case, push the
piston out of the backhead end of the case.
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Removal of the bit bearing and bottom end snap ring is not necessary for routine
maintenance. If necessary, use a small pick to remove the bit bearing retainer o-ring.
Using a long 2" (51 mm) diameter brass rod, go through the backhead end of the
case and tap the bit bearing out of the chuck end of the case. The bit bearing is a
slip fit. To remove the snap ring, insert the piston into the backhead end of the case
with the serial numbers toward the snap ring. Using a 2" (51 mm) diameter brass rod,
tap on the piston until the snap ring comes out of the chuck end. Remove the piston
from the case.
Summary of Contents for Patriot RC50
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