MAINTENANCE PROCEDURES
TB24 Plus&26J Plus Maintenance Manual 5-27 © Jun 2022
9. Slowly rotate the turntable to allow the turntable
back to the center position (at the center between
the two drive wheels).
10. Drive the machine forward or reverse, the oscillate
cylinder on the front left wheel should be released
to lower the wheel to come in close contact with the
ground.
11. Perform the same procedure to test the oscillate
cylinder on the front right side.
12. If the oscillate cylinder malfunctions, the malfuction
must be cleared by qualified service technician
before proceeding to next step.
B-18 Inspect Electrical Wiring
Maintaining electrical wiring in good condition is vital to
safe operation and good machine performance.
Continued use of the machine with damaged electrical
wiring or in corrosive environment will lead to unsafe
operation or severe injury. Before operating the
machine, make sure to replace or repair the damaged
or corroded electrical wires.
ELECTROCUTION HAZARD
Before inspecting the electrical
wires, make sure to disconnect the
battery and the charger on the AC
outlet. Contact with hot or live
circuits could result in death or
serious injury.
1. Inspect the electrical wiring in the following areas
for damage or corrosion：
• Engine wiring harness
• Turntable manifold wiring
• Ground controller
• Platform controller
2. Start the engine from the ground controller, and
raise the boom above the turntable.
3. Shut off the engine.
4. Inspect the cable track system for damaged or
corroded power cords.
5. Start the engine from the ground controller, and
lower the boom to stowed position.
6. Shut off the engine.
B-19 Inspect Battery
The condition of battery could affect the performance of
machine. Improper level of battery electrolyte or
damaged cable and wiring may damage battery parts
and pose dangerous conditions.
ELECTROCUTION HAZARD
• Contact with live circuit may
cause serious injury or death. Be
sure to wear goggles, gloves and
protective clothing.
• Remove all rings, watches and
other jewelry.
CHEMICAL BURN HAZARD
• Avoid the battery acid escaping
out and contact with skin, if does,
wash the skin with plenty of clear
water and seek medical
assistance.
• If battery acid spills, use water
mixed with bicarbonate (baking
soda) to neutralize the acid.
Note: Before performing this procedure, fully charge
the battery, and hold it still for 24 hours to equalize the
battery cells.
1. Ensure the battery cells are wired reliably with the
locking nuts torqued to the specifications as below:
Nut type Torque
M8 9～11Nm (6.6～8.1ft-lb)
M10 18～23Nm (13.2～17ft-lb)
NOTICE
Improper connection may cause reduced
performance, damaged terminals, fusions and
even fires.
2. Ensure the battery negative and positive are
correctly connected.
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