Pulley - Pulley Support; Pulley Inspection - JLG TOUCAN 10E Service And Maintenance Manual

2. Press on each chain between the pulley and the
chain attachment. Each chain of a same stage must
have the same deflection.
Figure 5-30. Chains Tension Control
Chain Tension Adjustment
1. With the mast fully lowered, check mast sections
alignment for reference.
2. Fully raise the mast then lower it by approximately
50 cm (20 in.).
3. Remove the locking nuts from the long anchor of the
chains to be adjusted.
4. Press on each chain between the pulley and the
chain attachment to estimate chain deflection differ-
ence. Tighten the attachment nut on the anchor of
the chain which is too slack or loosen the attach-
ment nut on the anchor of the chain which is too
tight, so as to ensure the final alignment of the mast
sections is kept.
5. Install and tighten the locknut on each anchor.
31210090
SECTION 5 - TURNTABLE AND VERTICAL MAST

5.6 PULLEY - PULLEY SUPPORT

Pulley Inspection

1. From ground controls, raise the mast to get pulleys
visible.
2. Check for slantwise pulleys. Replace pulley assem-
bly and check mast sections alignment.
Figure 5-31. Slantwise Pulley
3. Check for iron filings on turntable circular base plate
or on pulley support bottom tube. Presence of iron
filings indicates a severe pin and pulley assembly
wear. Shut the machine down till the worn pulley
assembly has been replaced. Check mast sections
alignment after pulley replacement.
4. Measure distance between the top edge of the pul-
ley and the top of the pulley support, then the dis-
tance between the bottom edge of the pulley and
the bottom of the pulley support. Unequal distances
indicate a severe pin and pulley assembly wear.
Shut the machine down till the worn pulley assembly
has been replaced.
– JLG Lift – 5-17