Quality since 1946
7700 Tyler Blvd. • Mentor, Ohio 44060
Phone (440) 974-8888 • Fax (440) 974-0165
Toll-Free Fax 800-841-8003 • buyersproducts.com
3004321 Rev. A
5. Slide rod bearing off the piston rod.
6. Make sure that the rod bearing o-ring comes off
with bearing.
Rod Bearing Seal Replacement:
If you are installing a bearing kit (TGC25008CKBK &
TGC32508CKBK) please skip to step 11.
7. Remove the rod wiper seal and o-ring from bearing. Be
careful not to scratch the inside surfaces of the rod bearing.
8. Clean bearing groove and O-ring seat from any
foreign material.
9. Lubricate bearing groove and rod wiper seal. Install
wiper seal into bearing groove.
10. Install new rod bearing O-ring over threads on bearing.
Rod Bearing Installation:
11. Clean and lubricate the rod and O-ring seat in the cap
with a small amount of the grease supplied.
12. Inspect new or repaired rod bearing to make sure the
seals are seated properly.
13. Lubricate both seals and the inside of the rod bearing.
14. Slid the rod bearing over the cylinder rod and thread it
into the cylinder’s cap.
15. Tighten with pipe wrench until the bearing O-ring is
seated firmly on the cap. (Some cosmetic damage to bearing
may occur.)
Warranty Information
Buyers Products warrants all truck/trailer hardware
manufactured or distributed by it, to be free from
defects in material and workmanship for a period of
one year from date of shipment. Parts must be pro-
perly installed and used under normal conditions.
Any product which has been altered, including modi-
fication, misuse, accident or lack of maintenance will
not be considered under warranty. Normal wear is
excluded. The sole responsibility of Buyers Products
under this warranty is limited to repairing or replac-
ing any part or parts which are returned, prepaid, and
are found to be defective by Buyers Products.
Authorization from Buyers Products must be obtained
before returning any part. No charges for transporta-
tion or labor performed on Buyers’ products will be
allowed under this warranty.
Cylinder Cap and Piston Seal Replacement:
If you are installing a bearing kit TGC25008CKBK &
TGC32508CKBK please disregard this section.
1. Disassemble the cylinder caps, remove the old seals from
the piston and caps, and clean all parts. Note: The piston
rod should not be disassembled from the piston because
the threads have a sealing adhesive in them. Inspect the
cylinder bore and piston for evidence of scoring. The light
scratch marks usually present on both the cylinder and
piston will generally have no detrimental effects on
performance of the cylinder.
2. Apply grease supplied to outside diameter of piston and
all grooves.
3. Install one of the piston seals into the groove nearest the
rod. The two lips of the seal should face toward the rod end
of the piston. See Figure 2.
4. Install wear ring to center groove. See Figure 2.
5. Lubricate inside of cylinder tube with grease and insert
piston and rod assembly into tube piston end first.
See Figure 3.
6. Slide piston and rod assembly through the cylinder tube
(piston end first) until the groove for the second is exposed.
See Figure 4. Be careful not to push the piston too far. If you
expose the wear strip and first piston seal you must push
the piston completely through and start this step over.
7. Install second piston seal into the exposed groove with
the two lips facing away from the rod end and pull the
piston into the cylinder tube.
8. Install both caps complete with O-rings to cylinder tube
and tighten screws.
(2 pages)
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