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MAINTENANCE
SEPTEMBER 2010
32DSKE02.B.1
S/K-SERIES EXPORT USE SERVICE MANUAL
5.
S/K-SERIES LIMIT SWITCH STATES
Refer to
Figure 3-5
. The limit switch actuation diagram shows the state of all limit switches as the platform travels
from fully stowed, to vehicle floor level, and to ground level. The solid (
▬
) line indicates the normally CLOSED por-
tion of switch is operational, while the two thin lines (
═
) indicate the normally OPEN portion of the switch is opera-
tional. The dotted lines (
∎ ∎ ∎
) are used to show switch states beyond normal travel boundaries of the platform.
This is useful to show the operation of switches that change state at folded or ground level positions. For proper
operation of lift, the switch actuations must overlap as shown.
RSM0005400
FIGURE 3-5: LIMIT SWITCH ACTUATION CHART
6.
REAR SPRING REPLACEMENT
NOTE:
A well maintained and lubricated parallel arm spring will prolong the life of the spring. In the event that
the spring will need to be replaced, proceed with rear spring replacement.
a.
Deploy platform to ground level onto a pallet for support and to maintain the parallel arms at a 90 degree
angle perpendicular to the rear of the platform towers. The tine of the spring will load straight up and down
when done so.
b.
Use a 5mm (3/16 in.) allen wrench to remove screw and lock washer from the pin.
c.
Refer to
Figures 3-6 and 3-7
. Attach pin alignment tool to pin. Replace pin with appropriate tool to hold
parallel arm and rear spring in place.
FIGURE 3-6: PIN WITH PIN ALIGNMENT TOOL
FIGURE 3-7: PIN WITH PIN ALIGNMENT TOOL
d.
Refer to
Figure 3-8.
Carefully remove tool holding parallel arm and rear spring in place. Hold rear spring
and parallel arm, then pull parallel arm up and remove rear spring.
