22
Inner Shaft and Seal Head Removal
2 0 0 ( A 2 ) & 4 0 0 ( B 1 ) H o u r S e r v i c e
I n n e r S h a f t a n d S e a l H e a d R e m o v a l
⚠
WARNING - EYE HAZARD
There may be remaining air pressure inside the upper post assembly. Keep your eyes and face away from the seal head during disassembly.
Unthread the seal head three full turns. Do not remove the seal head.
Hold a shop towel over and around the seal head. Slowly unthread the
seal head by hand while holding the shop towel
firmly
over the seal
head.
A small amount of air pressure may be released when the seal head is
completely unthreaded. Do not remove the shop towel from over the
seal head until the seal head is completely unthreaded.
Carefully remove the seal head and inner shaft assembly from the
upper post.
⚠
WARNING - EYE HAZARD
In the event there is any remaining air pressure inside the upper post
assembly, the shop towel will prevent the internal seal head from
dislodging from the upper post during removal. Failure to do so may
allow the inner seal head and inner shaft to separate from the upper
post assembly at high velocity during disassembly.
Keep your face and eyes away from the seal head while it is being
unthreaded and removed. Wear safety glasses.
Remove the internal seal head assembly and discard it.
1
23 mm
2
3
