Changing A Rod/Shaft And Replacing A Seal - Sentry Saf-T-Vise STV-HP1 Original Instructions Manual

Changing a Rod/Shaft and Replacing a Seal

Tools needed
ƒ Medium crescent wrench
ƒ Permanent marker
ƒ ¼" NPT nipple 2"–4" (5–10 cm) in length (for atomizers or quills only)
ƒ Hex key set
ƒ Small pick or screwdriver
ƒ Clean rag
ƒ Seal Installation Tool (for Teflon seals only)
– P/N 2-07815E for 3/8" OD rod/shaft
– P/N 2-07815F for ¼" OD rod
ƒ New seal for holder (Teflon or graphoil as needed)
ƒ Molykote 55 lubricant or other fine viscosity lubricant
ƒ Anti-seize lubricant
ƒ 320 grit or finer sandpaper
ƒ Cleaner/solvent
1. Remove the rod/shaft .
a. With the holder removed from the line, loosen the locking collet and slide the rod/shaft to the fully inserted
position, leaving 1" (2 .5 cm) between the top of the holder and the adapter lock nut .
b. Tighten the locking collet bolt to 35 ft-lb (47 .45 Nm) .
c. Remove adapter .
ƒ Coupon holder only:
– If using a flat coupon, use a permanent marker to mark the rod to show where the orientation arrow points
on the shaft (reference the arrow at the top of the shaft) .
– Use a medium crescent wrench to loosen the adapter lock nut .
– Remove both the adapter and the lock nut .
ƒ Atomizer shaft or quill shaft:
– With a permanent marker, mark the rod to show where the orientation arrow points on the shaft (reference
the arrow at the top of the shaft) .
– If fluid inlet does not have wrench flats, use a ¼" NPT nipple threaded into the fluid inlet adapter to remove
the adapter from the shaft . If the adapter has a multi-port valve, you can use it to aid in removal .
d. Loosen the collet and slide the shaft out of the body of the holder .
2. Separate the upper and lower body of the holder
a. Use a hex key to loosen (but not completely remove) the small set screw on the upper body .
Make sure the set screw is loose . Failure to loosen the set screw can cause permanent damage to the holder .
b. With the set screw loose, remove the upper body .
 NOTE
If the upper body is difficult to remove, stop immediately and make sure that the set screw is loose .
3. Replace the seal .
a. With the upper body removed, use a pick or small screwdriver to gently pick out the old seal .
b. Clean the seal body of the holder with a clean rag .
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