Drifting or Poor Holding:
Symptom: The truck doesn't hold a straight line or the steering feels "soft."
Likely Cause: Internal leakage past the piston seals.
Action: This requires cylinder removal, disassembly, and seal replacement. Often, a seal kit is available from Caterpillar.
External Leakage:
Symptom: Oil visibly leaking from the rod seal.
Likely Cause: Worn rod seal, damaged piston rod (scratched, scored), or contaminated fluid.
Action: If the rod is damaged, it may need to be repaired (re-chromed and polished) or replaced. If the rod is fine, replace the seal kit.
Erratic or Jerky Steering:
Symptom: The steering movement is not smooth.
Likely Cause: Air in the hydraulic system, contaminated fluid, or a bent rod binding in the barrel.
Action: Bleed the steering system according to the manual. Check the fluid and filters. Inspect the rod for straightness.
This 615-8307 steering cylinder is used for AD30 AD45B 906 908 underground art truck.
Related part number:
140-2310
140-2377
140-2380
140-2392
161-7145
175-7895
4J-9225
5J-4561
615-8308
2D-8652
615-8310
2D-8652
615-8315
615-8316
8J-0112
