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UPPER FRAME
DISASSEMBLY AND ASSEMBLY
1. Remove the hoe attachment.
“Removing the hoe attachment”
2. Remove the canopy or the cab.
3. Remove the covers.
“Removing the covers”
4. Disconnect the hydraulic hoses from the swivel joint.
5. Remove the fixing bolts and then the stopper.
“Removing the swivel joint”
Bolt: 102 N·m
6. Disconnect the grease pipe (3) from the slew bearing.
7. Remove the fixing bolts from the outer race of the slew
bearing, leaving only two bolts each on the front and
the rear of the machine.
• When installing the slew bearing, be careful to align
it with the positions of the grease hole and reamer
bolts.
“Removing the slew bearing”
Bolt: ThreeBond #1324
Bolt: 102 N·m
8. Suspend the upper frame temporarily and remove the
remaining fixing bolts while keeping the frame well bal-
anced.
9. Suspend the upper frame and remove it.
Installing the upper frame
For installation of the upper frame, follow the same proce-
dure as for removal in the reverse order.
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