conditions. Wipe the chains to remove any
surface dirt.
2.
Use a thin paint brush to liberally coat the full
length of the lift chains with motor oil. Use
SAE 20W for operating temperatures from
-40
o
F to 32
o
F. Use SAE 40W for operating
temperatures above 32
o
F.
3.
Check the chain tension by fully lowering the
carriage and tilting the upright to a vertical
position.
4.
Press on each chain, using moderate
pressure. Each chain should have equal
tension. Refer to the ELEVATING section for
adjustment procedures.
MOTOR BRUSHES
WARNING
Disconnect the battery before making any
inspections or repairs.
Drive Motors
Check the condition of the brushes in the drive
motors. Brushes must be replaced if they
measure less than 0.7".
Inspect and clean the commutator.
E
lectric
C
ounterbalance
H
igh
O
utput
Preventive Maintenance
9/1/99
10.9
