Mast Transversal Play/Mast Sections Alignment; Roller Installation; Mast Sections Vertical Alignment - JLG TOUCAN 10E Service And Maintenance Manual

Roller Installation

NOTE: If already assembled, use a locknut to free the
bronze wear pad, the roller and the washer from the
pin: install the locknut on the pin and tighten it until
the wear pad is released.
Figure 5-15. Roller Installation
1. Partly tighten the pin on the mast section and slide
the washer on the pin.
2. Apply grease to the wear pad so that it sticks to the
mast wall and does not fall to the bottom of the mast
section.
3. Press the wear pad to the mast wall and slide the
roller and the wear pad in line with the pin.
4. Once the roller is in line with the pin, tighten the pin
so that the roller slides onto the pin.
5. Reposition the wear pad in line with the pin then
tighten the pin until the bronze wear pad is fully
inserted.
6. Loosen slightly the pin to prevent the mast from jam-
ming during adjustment. Loosely install the locknut.
7. Repeat operation for the other pin assemblies.
8. Adjust mast transversal play and mast sections
alignment.
Mast Transversal Play/Mast Sections
Alignment
Mast transversal play adjustment could be necessary
when the bronze pad of the roller pins begin to wear.
Mast sections alignment must be adjusted when mast
rollers have been replaced or if pulley(s) show abnormal
flange wear.
THE ALIGNMENT OF THE MAST SECTIONS AND THE ADJUST-
MENT OF THE TRANSVERSAL PLAY OF MAST SECTIONS MUST
BE PERFORMED BY TRAINED AND QUALIFIED PERSONNEL.
31210090
SECTION 5 - TURNTABLE AND VERTICAL MAST
DO NOT SUPPRESS COMPLETELY THE TRANSVERSAL PLAY:
FOR THE MECHANISM TO WORK, A MINIMUM PLAY IS NECES-
SARY.
1. Clean the inside walls of the mast sections to
remove old grease.
2. Loosen the locknuts of the roller pins.
3. Reduce the transversal play by tightening the roller
pins in succession.
4. Fully raise the mast and use a plumb line to ensure
the vertical alignment of the mast sections is kept.
Figure 5-16. Mast Sections Vertical Alignment
5. Tighten the roller pin locknuts (use a slogging
wrench).
6. With the rated load evenly distributed on the plat-
form floor, fully raise and lower the mast two or three
times.
7. If during lowering, one of the mast sections jams,
discontinue lowering and raise the mast to retention
the chains. Loosen slightly the roller pins of the
jammed mast section.
8. Check each roller pin locking nuts for correct tight-
ening.
9. Lubricate mast profiles (Refer to Section 5.3).
– JLG Lift – 5-7