Harrington Hoists and Cranes Series 3 End Truck - Manual (Page 31)

3.4.2 Single Piece Drive Shaft
a) Install the Hand Wheel section of the Drive Shaft first.
(1) Slide the Hand Wheel over the Hand Wheel End of the Drive Shaft (the Hand Wheel end
of the Drive Shaft is the end with a through-bolt hole two inches from the shaft end).
(2) Refer to Figure 3-13 or Figure 3-14 whichever applies and insert the connecting shafts
into both ends of the Drive Shaft. Line up the three holes at the Hand Wheel end - hole
in the hub of the Hand Wheel, hole in the Drive Shaft and the hole in the Connecting
Shaft. Insert the long Bolt B and fasten using the nut and split pin.
Figure 3-13 Drive Shaft Connections at End Trucks with Pillow Blocks
Figure 3-14 Drive Shaft Connections at End Trucks with Gearhead Ass’y
(3) Next, hold the Hand Wheel end of the Drive Shaft adjacent to the splined Pinion
Shaft/Axle. Slide the Connecting Shaft onto the Pinion Shaft/Axle. Refer to Figure 3-13
or Figure 3-14 whichever applies.
(4) Last, line up the remaining end of the Drive Shaft with the splined Pinion Shaft/Axle on
the other end truck and slide out the Connecting Shaft from the end of the Drive Shaft
until the through-bolt holes line up between the Connecting Shaft and Drive Shaft.
Fasten the Drive Shaft to the Connecting Shaft using Bolt A, the slotted nut and split pin.
3.4.3 Multiple Piece Drive Shaft
a) Install the Bearing Support Assembly(s) onto the bridge beam. Refer to Figure 3-16 and note
that for bridge beams with a flange width less than 140 mm use Bolt Pattern A. For bridge
beams with a flange width of 5.5 inches or more use Bolt Pattern B.
b) Install the Hand Wheel section of the Drive Shaft first.
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