Maintenance
Up/Down System
Maintenance
HDSdoc030722
3-10
3
3.13 Up/Down System
1.
Grease the up/down gear reducer shaft bearing with a NLGI No. 2 grade lithium grease every
1000 hours of operation.
See Figure 3-8.
2.
Super model up/down systems feature a spring loaded belt design. Belt tension is automatically
maintained and requires no adjustment. Replace the belt when adequate belt tension can no longer
be obtained.
WARNING!
Always secure the cutting head with a chain or a brace
before removing the up/down motor belt. The cutting head may fall,
causing severe injury or death.
3.
Adjust the up/down chain tension as needed. Measure chain tension with the head all the way to the
top of the vertical mast. Secure the carriage with a chain at the top, or shim it underneath. Find the
chain adjusting bolt at the bottom of the mast, behind the battery box. Adjust the bolt until the center
of the chain can be deflected 3/4” (1.9cm) forward
and
3/4” (1.9cm) backward with a 5 lb. (2.3 Kg)
deflection force.
WARNING!
Always secure the cutting head with a chain or a brace
before adjusting the up/down chain. The cutting head may fall, causing
severe injury or death.
CAUTION!
Do not overtension the chain. Overtensioning the chain
may lead to early failure of the gear reducer.
FIG. 3-8
1000
3H0016B
Up/Down Gear Reducer
Shaft Bearing
Up/Down Gear Reducer
Shaft Bearing
