Stellar Industries 28000 - Manual (Page 54)

50 28000 Owner’s Manual
Hydraulic legs do not hold under load. Defective holding valves
Worn seals in the stabilizer cylinder.
Clean or replace holding valves.
Replace worn seals.
Crane does not function. Truck battery discharged
Electric connections are damaged or
corroded.
Control handle turned off.
Charge battery.
Check electrical wiring, terminals, con-
nections and their integrity.
Turn on control handle
Crane does not function - Continued Battery charge low.
Burned fuses
Dump valve not operating properly.
PTO not fully engaged.
Charge transmitter battery.
Replace the fuses.
Bypass electrical circuit
Check for full engagement.
Control box lights do not operate
(green LED out) Discharged battery.
Burned fuses.
Disconnected electrical cord.
Corroded or loose electrical connec-
tions.
Faulty manual/remote switch.
Recharge battery.
Replace fuses.
Join correctly the connection, replace
the electric coupling.
Check electrical connections.
Replace switch.
A crane function does not work. Defective switch.
Faulty solenoid.
Locked valve cartridge.
Damaged electric connection.
Replace the switch.
Replace the solenoid.
Disassemble and clean the valve car-
tridge.
Check continuity of the circuit.
Operations at high or low speed do not
work. Parameters of control box (receiver)
set incorrectly or have failed. Contact Stellar customer service
department.
Controls fail to respond with control
box. Batteries dead in wireless handle.
Handle on/off button isn’t turned on.
Manual/remote switch is in manual
position.
Recharge or replace batteries in
remote handle.
Turn on on/off button on remote han-
dle.
Position manual/remote switch in
remote position.
Operation slow down. Hydraulic oil supply is low.
Hydraulic pump is operating at a
reduced speed.
Relief valve is set too low.
Pump or cylinder is worn.
Add hydraulic oil.
Engine idle speed may be too slow,
increase speed.
Check relief with gauge.
Replace cylinder seals.
Problem Possible Cause Possible Solution