DISASSEMBLE AND ASSEMBLE TRACK
ADJUSTER AND RECOIL SPRING
CAUTION: Spring or rod may break if dropped
while handling, transporting or disassembling.
Nicks or weld craters in spring and rod
assembly can cause stress concentration
resulting in a weak spot. Weak spots may result
in immediate or eventual failure creating a risk
of personal injury. Put a heavy protective
covering around spring assembly when
handling, transporting, or disassembling track
A compression tool must be used for
disassembly and assembly because of the
extreme preload on spring.
CAUTION: The approximate weight of track
recoil spring disassembly and assembly tool is
225 kg (496 lb).
Track Recoil Spring Disassembly and Assembly Tool--Specification
Weight............................................................ 225 kg (496 lb) approximate
1. Place an 18-t (20-ton) jack on bottom of ST4920 Track
A--Recoil Spring Disassembly and Assembly
Recoil Spring Disassembly and Assembly Tool (A).
Remove nuts (B) and top plate (C). (See Section 99 for
instruction to make tool.)
NOTE: It is not necessary to remove the recoil spring to
replace wear ring and U-ring packing on piston.
To replace O-ring in the cylinder, remove recoil
spring and rod.
2. Remove nuts (B). Remove top plate (C).
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