Top And Bottom Rollers - JLG TOUCAN 8E Service And Maintenance Manual

SECTION 5 - TURNTABLE AND VERTICAL MAST
Settings Validation
14. a). Test mast lowering movement from ground con-
trol panel (No load in the platform).
The mast must come down without jamming or
slack chain warning in the maximum time indicated
in Table 5-5.
b). Test mast lowering movement with platform con-
trol box (One operator in the platform).
A second operator should be on the ground to
assist with rescue in the event of mast sticking.
The mast must come down without jamming or
slack chain warning in the maximum time indicated
in Table 5-5.
Controls
Models 8E-20E
Ground
Control Panel
Platform
Control Box
Table 5-5. Maximum Mast Lowering Time
c). If the operator considers that an adjustment is
needed (too much play in the mast, mast jam-
ming...), the setting can be modified within following
limits:
- Top rollers:
Tightening (maximum indicated in Table 5-6) com-
pared to basic setting in step 4 or
Loosening until correct functioning (No mast jam-
ming).
- Bottom rollers:
Tightening (maximum indicated in Table 5-6) com-
pared to basic setting in step 10 or
Loosening until correct functioning (No mast jam-
ming).
Rollers
Models 8E-20E
Top
Bottom
Table 5-6. Maximum Tightening Adjustment
NOTE: After each tightening operation, it is imperative to
ensure that no mast jamming appears.
Maximum times for mast lowering are given for a
temperature >10°C (50°F).
5-12
Mast Lowering Time (s)
Models 10E-26E
45 45
30 30
Rollers Setting (Turn)
Models 10E-26E
1/8 1/8
1/8 1/4
15. Visual marking is required: mark the rollers with a
paint mark as shown in Figure 5-28.
Figure 5-28. Top and Bottom Rollers
Mast Lubrication
16. Using ground control panel, fully raise the mast.
Using a brush, lubricate the roller pin wear pad track
with specified lubricant. Avoid greasing the roller
track.
Clean roller track if necessary.
Final Control
17. Complete full function tests of the machine prior to
returning the machine to service.
– JLG Lift – 31210090