Kanga 5 Series, Operator'S Manual

Page: 39 / 78

Jaden Kanga Group
Jaden Kanga – OPERATORS MANUAL Page
39
Boom - (continued)
TROUBLE PROBABLE CAUSE REMEDY
Boom arm will not raise or
raises slowly. Lift control valve relief set too
low allowing oil to return to
reservoir. Adjust relief valve to proper setting.
Contact Service Agent
Worn control valve spool Check pressure delivery from control valve.
Contact Service Agent
Excessive oil leak past lift
cylinder piston seal. Repair or replace cylinder as necessary.
Control rod or lever broken or
disconnected. Repair or replace control rod or lever
Hydraulic lines incorrectly
connected at control valve. Correctly connect line at control valve.
Boom raises and lowers
erratically Lift control valve relief set too
low, allowing oil to return to
reservoir. Adjust relief valve to proper setting.
Hydraulic system oil low Check oil and replenish as necessary. Oil
level should not change. Leaks may be
present.
Damaged or blocked line Remove line and remove any obstructions or
replace line as necessary.
Malfunctioning pump Repair or replace hydraulic pump as
necessary.
Worn control valve spool Check pressure delivery from control valve.
Repair or replace valve as required.
Excessive oil leak past lift
cylinder piston seal. Repair or replace cylinder as necessary.
Boom pivot pin seized or
otherwise damaged. Replace pivot pin and bushing as necessary,
Grease
Boom Lowers with control
leverin neutral Worn control valve spool Repair or replace valve as required.
Lift ram piston seal leaking Replace seals.