JLG TOUCAN 10E Service And Maintenance Manual page 58

SECTION 5 - TURNTABLE AND VERTICAL MAST
Rotate the turntable 90 degrees to the left to get an easier
access to the mast assembly and to be able to install sup-
ports for the mast sections.
st
1 Chains Stage Removal
1. Using the ground controls, raise the mast to gain
access to chain attachments #1 and #2.
2. Support efficiently mast sections #3, #4 and #5
with 3 couples of suitable blockings as indicated on
the figure below.
The blockings must rest on the turntable circular
base plate or on the chassis plate as applicable.
Figure 5-26. Supporting Mast Sections (1 of 3)
3. Using the ground controls, lower the mast until the
mast sections rest on blockings. Secure the block-
ings in place with C-clamps.
5-14
4. Remove the locknut, attachment nut and bevel
washers from a chain anchor at attachment #2.
5. If installed, remove the chain slack detection assem-
bly from the other end of the chain. If not installed,
remove the locknut and the attachment nut from the
other end of the chain. If necessary, remove mast
inside power track from mast section #2 attach plate
to facilitate access to the chain anchor.
6. Remove one of the chains anchors so that the chain
can be removed from the pulley groove (if neces-
sary).
7. Install and tension a new chain before removing the
other one.
st
1 Chains Stage Installation
1. Install the short anchor at one end of the chains.
Correctly install the split pins on the clevis pin.
2. Run the end of the chain (without anchor) over the
pulley. The short anchor must be on the side of
attachment #1.
3. Install the long anchor at the other end of the chain.
Correctly install the clevis pins on the split pin.
4. Install the chain slack detection assembly or the
attachment nut and locknut (as indicated on the pre-
vious figures) at attachment #1.
5. Install the bevel washers and the attachment nut at
attachment #2.
6. Check that the chain is correctly positioned in the
pulley groove and tighten the attachment nut (on the
long anchor) until the chain is under tension. The
locknut will be installed after chains tension adjust-
ment procedure.
7. After both chains of the stage have been replaced,
slightly raise the mast using the ground controls.
Remove C-clamps and blockings.
8. Adjust lifting chains tension accordingly.
– JLG Lift – 31210090