Manitowoc 16000 - Page 286

Reference Only
Troubleshooting 16000 SERVICE/MAINTENANCE MANUAL
10-26
Published 05-09-17, Control # 014-28
PROBLEM 25
Crawler pin cylinder(s) will not extend or retract.
CHECKS
Check for 3,500 psi (241 bar) at valve test port while manually enabling a
crawler pin cylinder.
POSSIBLE CAUSES
Faulty control valve section; Low pump pressure; Bad pump; Pressure
transducer bad; Faulty counterbalance valve.
3,500 psi (241 bar) or more
Less than 3,500 psi (241 bar)
Repair or replace
accessory/MAX-ER pump.
Does system pressure increase when a a pin
cylinder handle is moved?
Yes No
Repair or replace lower accessory
enable pressure sender.
Repair or replace problem
pin cylinder.
Does system develop any pressure?
Yes No
Consult Manitowoc dealer or
Crane Care.