5
Unpacking the Operator
Complete the following steps to unpack the operator.
1. Before you remove the operator from the carton,
check for any physical shipping damage, such as a
torn shipping carton or leaking oil. Inspect the
operator carefully after removing it from the carton.
Notify the carrier immediately if you note any
damage because the carrier must witness the damage
before you can file a claim.
2. As you unpack the operator, insure that all parts are
included. The package should contain all the items
listed in the Parts List for your particular operator.
3. Remove the vent screw from the operator before
applying power (see Fig. 1). Be sure to save the vent
screw for possible future use because the screw
should be installed if you transport the operator.
Caution:
The vent screw
must
be removed before
you start the operator.
4. Remove the top cover of the operator using a 3-mm
Allen wrench. Remove and discard the special
Styrofoam block resting on the transformer in the
center of the control panel (see Fig. 12 for the
transformer location on the control panel).
5. Remove the oil plug (see Fig. 1) with a 17-mm
wrench and check for the proper oil level. The oil
should be just slightly above the silver armature plate,
located below the copper motor windings as viewed
through the oil filler hole.
6. At this time remove the rubber cover from the
Manual Release mechanism protruding from the side
of the operator (see Fig. 1). Keep track of the rubber
cover because you will replace it at the end of the
installation process if you are not using a locking cap.
You are now ready to begin the actual installation of the
operator (see page 9).
Parts List for the Chain Operator
1 746 operator (equipped with chain drive mechanism);
the cover is attached with 2 (of 4) 3-mm Allen-head
bolts; mounting brackets are attached
1 746 foundation plate (optional; this part must be
ordered separately)
1 Z20
sprocket
1 Hardware package that contains the following:
1 5 mm bolt with flat washer
1 Manual Release lever
2 Limit switch plates, each is 2-1/8
×
3-1/2 in. (54
×
89 mm)
4 Rubber weather plugs for top cover hold down
bolts
1 Top cover gasket
2 3-mm Allen-head bolts
1 Chain mounting kit with the following:
2 Chain tension adjustment bolts, each with 3 nuts
and 1 locking washer
2 Chain tension adjustment bolt mounting brackets
with 4 clamps
1 Idler assembly kit with the following:
1 Chain guard with 1 bolt and flat washer for
mounting
1 Idler mounting bracket with 5 longer mounting
bolts and 1 mounting stud for the chain guard
2 Idler sprockets with 2 snap rings for mounting
2 Rack limit switch plates with 4 mounting bolts
and lock washers
2 (Optional) Bolt-on operator mounting brackets
with 4 bolts, 4 washers, 4 lock washers, and 4
nuts
Parts List for the Rack and
Pinion Operator
1 746 operator (equipped with rack and pinion drive
mechanism); cover is attached with 2 (of 4) 3-mm
Allen-head bolts; mounting brackets are attached
1 746 foundation plate (optional; this part must be
ordered separately)
1 Z20
pinion
1 Hardware package that contains the following:
1 Manual Release lever
2 Limit switch plates, each measures 2-1/8
×
3-1/2
in. (54
×
89 mm)
4 Rubber weather plugs for top cover hold down
bolts
1 Top cover gasket
2 3-mm Allen-head bolts
Summary of Contents for 746 ER CAT
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