160GR Natural Gas Booster Instruction Manual
Mayekawa all rights reserved. Subject to change without notice. Lat revised in October 2007
p.23
b
）
Remove the seal cover. The mating ring is attached to the seal cover. Keep the seal
cover parallel to the shaft, in order to make sure the ring does not touch the shaft.
Then, remove the
“
O
”
Ring (49) located between the seal and seal retainer.
c
）
Inspect the shaft after the seal cover is removed. If there are scars on it, use a sand
paper (#800 and above) to sand them down. When there are scars on the shaft, they
can catch the
“
O
”
ring and may make it hard to remove the shaft seal ASSY.
d
）
Loosen the set screw of the shaft seal ASSY (100). Do not remove the set screw.
Instead, turn it 3~4 times till the top edge of the screw hides inside the seal collar.
There are two set screws (90° angle), that are out of alignment.
Figure 6 Seal Collar Set Screw
Figure 7 Removing the Seal body
e
）
Hold the seal collar area by fingers and remove it. Make sure the set screw is not
caught by the shaft when removing. If the set screw is caught and forced to be
removed, its top edge can damage the shaft, which will cause the seal to leak.
f
）
Remove the set screw of the sleeve for the oil seal. As the tool, insert 2 eyebolts into
the screw holes as to remove the seal retainer. Keeping it at the 90 degrees from the
shaft, pull out the seal retainer together with the oil seal sleeve.
Figure 8
Oil Seal Sleeve Set Screw
Figure 9 Pulling Seal Retainer Out
