Harrington Hoists and Cranes SMR Trolley - Manual (Page 10)

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3.0 Pre-operational Procedures
3.1 Assembly and Adjustment
3.1.1 When the SMR trolley is combined with a hoist, follow and complete all pre-operational procedures
provided with the hoist. For Harrington SNER model hoists, follow the pre-operational procedures in
the SNER Owner's Manual in conjunction with all information provided in this section for mounting and
electrical connections.
3.1.2 In addition to the information and procedures provided in this section for the SMR trolley, there are
specific details for using SNER hoists with SMR trolleys. Special mounting and wiring considerations
must be taken if the trolley is used with a hoist other than an SNER model.
3.1.3
WARNING
Never attempt to hook mount a hoist directly to the Suspension Shaft on the SMR
trolleys up to and including 3 Ton. These trolleys are designed to be used with a suspender only and
do not have the vertical clearance required for a hook to fit between the Suspension Shaft and trolley
beam.
3.1.4 Preparing SNER hoists for use with SMR trolley.
¼ to 2 Ton SNER – The standard suspension configuration uses Suspender T which orients the hoist
perpendicular to the trolley beam. Optional two-piece suspension method uses a Connection Yoke
and Suspender G, which orients the hoist parallel to the trolley beam. If the hoist is not equipped with
Suspender T or the Connection Yoke from the factory, remove the Top Hook Assembly from the hoist
and install Suspender T or the Connection Yoke as follows:
1) Refer to Figure 3-1 .
2) Remove the four Controller Cover socket head bolts and allow the cover to swing fully open.
3) Loosen the three or four captive screws holding the electrical component mounting Plate against
the main body of the hoist and swing the plate out to access the required components.
4) Loosen one of two Machine Screws attaching Plate A and remove the second Machine Screw.
Allow Plate A to rotate out from the retaining slot in the bottom side of the Connection Shaft. Pull
out the Connection Shaft and remove the Top Hook Assembly.
5) Remove the Hoist Fixing Shaft.
6) Place Suspender T or the Connection Yoke on the top of the hoist. Line up the holes for the
Connection Shaft and the Hoist Fixing Shaft and reinsert the shafts.
7) Reassemble the remaining hoist components in reverse order of disassembly.
8) If installing the Connection Yoke, place the Connection Yoke Rubber and Suspender G in the top
of the Connection Yoke. Attach Suspender G to the Connection Yoke with the Yoke Bolt, Slotted
Nut and Split Pin (cotter pin).
3 Ton (030C) SNER – The 3 Ton (030C) SNER hoists (double fall) always use a Connection Yoke.
The standard suspension configuration uses Suspender T which orients the hoist perpendicular to the
trolley beam. Suspender G is available as an option and orients the hoist parallel to the trolley beam. If
the hoist is not equipped with Suspender T or G from the factory, remove the Top Hook Assembly from
the Connection Yoke and install the Suspender T or G as shown in
Figure 3-2 .