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TO AVOID INJURY:
Use only the CM-supplied suspension screws to attach the
suspension to the hoist and hand-torque these screws to the
recommended seating torque as specified in Tables 13a-13c.
DO NOT apply any type of lubricant to the threads of these screws.
Lubricating the threads will reduce the effort to seat the screws
and as a result, tightening the screws to the above recommended
torque may break the screw, damage the suspension adapter, strip
the nuts and/or damage the hoist frame.
SUSPENSION BOLT SHOULD BE REPLACED ANY TIME
THE SUSPENSION IS REMOVED FROM THE HOIST.
4
1
5
Figure 8. Suspension Components
(Chain plate not shown for clarity)
. Dead end block
. Suspension assembly
. Suspension
self-locking nut
. Dead end bolt
. Dead end link
. Chain guide
ATTACHING LOAD CHAIN
Single-Reeved
1. Suspend the hoist from an adequate support.
2. If replacing existing chain, remove chain block kit from loose end
of chain by removing the two (2) screws from opposing sides of
the block. Remove lower hook assembly by removing the pin
holding the chain into the assembly.
3. Limit switch settings will need to be disabled when removing or
installing chain. Refer to the limit switch section.
4. Using the connecting link, attach new chain to end of starter
chain (existing chain if replacing) and feed through chain
guides and over liftwheel. Feed enough chain through to be
able to attach the chain block kit to the loose end of the chain
by assembling the screws and nuts into the appropriate slots
and tightening securely.
5. Attach the lower hook assembly to the appropriate end
of the chain by inserting the end link of the chain into
the block and securing the link with the pin.
6. Set upper and lower travel limits before putting unit
into service. Refer to the limit switch section.
VARIABLE SPEED ELECTRIC CHAIN HOIST WITH
OPTION
2
3
6
7
8
9
10
11
. Liftwheel
. Motor housing
. Loose end screw
. Loose end link
. Loose end
(Do not order parts by these
numbers. Parts list can be
accessed online - see page 2.)
Double-Reeved
Suspend the hoist from an adequate support.
To attach the chain to the dead end block on Models E, H and R
proceed as follows:
1. Suspend the hoist from an adequate support.
2. On Models E and H insert the last link of the load chain into the
dead end block (1) and secure it with the dead end pin, washer
and cotter pin furnished with the suspension. Ensure there are
no twists in the chain.
3. On Model R, slide the contact block up the chain until it is
against the bottom of the hoist and the dead end block is
projecting through the square opening in the bottom of the
block. Insert the last link of the load chain, making sure there
are no twists between the hook block and the dead end block,
into the dead end block. Push the contact block up slightly and
secure the load chain to the dead end block using the dead end
pin, washer and cotter pin furnished with the suspension. The
dead end pin also supports the contact block (see Figure 9).
Figure 9. Contact Block Used on Model R
Triple-Reeved
1. Suspend the hoist from an adequate support.
2. If replacing existing chain, disconnect "loose end" of chain by
removing the screw holding loose end link in place on side of
hoist frame. Remove dead end of chain by removing the pin
holding dead end link into lower hook assembly block.
3. Using a connecting link, attach new chain to the "loose end"
of starter chain (existing chain if replacing) and guide through
lower hook block, through upper sheave hanger and over sheave
wheel, through center hole of plate, and to dead end (center) slot
on lower hook assembly. Make certain load chain is free from
twists and binds.
4. Place dead end link into dead end slot and insert pin. Attach
loose end link to frame of hoist, using the provided screw.
Tighten all fasteners securely.
Do not remove the plastic ties from the load chain at this time.
After the suspension is installed, hoists with a hook suspension can
be suspended from their permanent support and then connected
to the power supply system (refer to page 11). For hoists with a
lug suspension that are to be suspended from a Series 635 Low
Headroom Trolley, attach the hoist to the trolley per the following
instructions.
9
P/N: 192047082 (REV AD) 627NH March 2022
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