99903514:TELESCOPIC CRANE: 3A-4
SECTION 3A: CYLINDER REPAIR
O-RING
WEAR RING
PISTON SEAL
WEAR RING
STOP TUBE
PISTON
BACK-UP RING
O-RING
HEAD
ROD WIPER
U-CUP SEAL
WEAR RING
CASE
SET
SCREW
GREASE
ZERK
BEARING
ROD
GREASE
ZERK
BEARING
STOP TUBE*
LOCK RING SEAL
SEAL KIT
COMPONENTS
20120521
15. Attempt to dress any nicks or gouges that may
have occurred during disassembly using fine grade
emery cloth.
WARNING
REPLACE CRACKED OR DENTED RODS OR
CYLINDER CASES!! DO NOT ATTEMPT REPAIRS.
16. Clean all cylinder components before reassembly.
17. See Figure C1-2, Seal Installation Guidelines
before replacing seals.
CAUTION
DAMAGING THE EDGES OF THE GROOVE WILL
CAUSE PREMATURE SEAL FAILURE.
14. Remove the companion o-ring and nylon insert
using the plastic awl.
FIGURE C1-1. TYPICAL CYLINDER AND SEAL KIT COMPONENTS
NOTE:
EXTENSION CYLINDER COMPONENTS DIFFER -
REFERENCE EXTENSION CYLINDER
COMPONENTS DRAWING IN THIS SECTION.
* STOP TUBE REPLACED WAFER LOCK RING IN
MANY CYLINDERS. USE STOP TUBE INSTEAD
OF WAFER LOCK WHEN RESEALING CYLINDER.
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