
Maintenance
Up/Down System
5
5-25
60HD-R04doc112210
Maintenance
Rev. A5.00 - B3.01:
The up/down system is equipped with a gas spring assist mecha-
nism to provide improved speed and performance. The saw head must be secured and
tension released from the assist assembly before performing any maintenance to assist
components.
WARNING!
Always secure the saw head with a 5/16" chain
with at least 1900 lbs. working load capacity before servic-
ing the up/down assist. The cutting head may fall, causing
severe injury or death.
WARNING!
Release pressure from the up/down assist prior
to performing any service to the assembly. Failure to do so
may result in the assembly flying apart, causing injury or
damage to the equipment.
1.
Locate the four upper up/down assist mounting bolts. Remove the two lower set of
mounting bolts.
See Table 5-2.
2.
Raise the saw head all the way to the top of the mast and secure with a chain.
3.
Locate the up/down assist tension assembly.
FIG. 5-13
AR
600188-2
Remove bottom
two upper mountng
bolts