sarvaria Multilift, Installation Manual

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Page 22
Multilift Installation Guide Part No. 000643, 26-m02-2013
e. Align the keyway on the square nut with the one on
the acme screw and insert the key.
f. Tighten the set screws holding the lower end of the
acme screw into the pillow block (refer back to
Figure 42).
g. Install the shaft collar on the acme screw, just on top
of the key. Use blue loctite on the bolts (refer back to
Figure 41).
h. Install the V-belts on the drive pulleys. Adjust the
alignment of the two pulleys if necessary by moving
either one. The small pulley can be moved up and
down on the motor shaft (see Figure 46 below)
using the pulley set screws. The larger pulley can be
adjusted by moving the acme screw up or down by
the top square nut while respecting the minimum
and maximum distances specified in Figure 44 on
the previous page. Wait until the screw has been
aligned before adjusting the belt tension.
i. Reconnect the wires going to the switches on the
main nut.
Figure 47
Adjust pulleys if necessary
Small pulley
5 Follow these steps to install the platform.
a. Install the roller supports and fasten them to the
main crossmember.
b. Install the carriage to the roller supports.
c. Fasten the travelling cable with cable ties to the
main crossmember at the original positions. Ensure
the cable is long enough to prevent it from hanging
on the ground when at the lower landing.
6 If for any reason, the supports holding the top and
lower bearings have been removed or loosened, it is
very important to align the acme screw. Follow the
steps below to do this.
a. Lower the platform within 1” from the lowest
position possible without resting it on the ground.
b. Loosen the four bolts holding the lower bearing
mounting plate and the two bolts holding the lower
bearing as shown in Figure 47.
Figure 48
Loosen mounting plate bolts and bolts holding bearing
c. Ensure the lower bearing mounting plate and
bearing are free to slide sideways. The purpose of
this operation is to let the carriage dictate the
position of the screw. Let the screw find its natural
position.
d. Secure the bearing in place by tightening the six
bolts holding the mounting plate and the bearing in
place.
e. Run the platform within 1” from the highest position
possible. Loosen the two bolts holding the upper
bearing disk to the L-support. Ensure the disk is free
to move sideways to allow the acme screw to move
to its natural position.
f. Tighten the upper bearing disk.
g. Adjust the belt tension by sliding the motor toward
the left side.
Figure 49
Loosen bolts holding upper bearing disk to L-support
7 Install the side panel wall on the tower side.
8 Reconnect the travelling cable quick connect plug to
the COP.
9 Install the front panel (three screws).
10 Install the top cap (two screws).