© Mar. 2022 5-20 GTTZ10EJ Maintenance Manual
MAINTENANCE
Figure 5-17
• The wear in the height of link section is 2% more
than the original, i.e., H1＜H–2%H.
Figure 5-18
• The chain becomes ineffective.
• The chain is cracked or torn apart.
The steel cable is made of hardened steel and has
been specially treated.The used chain must be handed
over to the specially intended enterprises for recycling.
Connection between Mast Sections 1,2
and Brackets
1. Preparation
UNSAFE OPERATION HAZARD
• Cordon off the test area before the
maintenance is performed.
• Be sure to wear goggles,
protective clothing and gloves.
• The machine must be positioned
on a level, firm surface clear of
obstructions.
• The disassembly, if needed, must
be performed by qualified trained
personnel with power supply
completely off.
2. Inspecting the mast section 1 properly
secured to the lift cylinder
Figure 5-19
1. Start the machine from the ground.
2. Raise the mast approx. 5m (16ft 4in).
3. Remove the cover plate on the back of base
section.
CRUSH HAZARD
Do not reach your hand and arm
inside the mast.
4. Check the clearance between the mast section 1
and lift cylinder bracket, ensure no clearance exists,
i.e., J=0.
Figure 5-20
5. Be sure that the mounting bolts are securely
tightened, with all the bolt heads in parallel with,
and not 1.5mm (0.059in) higher than, the underside
of the bracket.
To Next Page
Loading...
