Harrington Hoists and Cranes RH Wire Rope Hoist - Manual (Page 29)

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Figure 3-14 Loosen Stiffener Plates Figure 3-15 Move Side Plates
7) Using a forklift or another suitable means, position the pallet so that the horizontal axis of the beam
is parallel to the horizontal axis of the hoist (see Figure 3-16).
8) Temporarily slide the Side Plates (F) OPPOSITE the trolley motor(s) along the Load Bars (J) so
that the Distance between the faces of the trolley wheel is wider than the beam flange (see Figure
3-17).
9)

This applies to standard headroom trolleys only. When preparing the trolley
for placement on the beam, ALWAYS move the Side Plates (F) opposite the traversing motor side.
DO NOT move the Side Plates (F) on the trolley motor side.
10) Use a moveable scaffolding or a lifting platform so that one person can reach the height of the
beam and guide the forklift operator. Raise the pallet slowly and carefully avoiding any swinging or
oscillations until the trolley hoist reaches the bottom flange beam.
11) Guiding the fork lift operator, slowly raise the pallet while keeping it level until the running surface of
the trolley wheels are above the bottom flange of the beam. Then move the pallet horizontally until
the trolley wheels on the trolley motor side are over the bottom flange.
12) From the scaffolding or lifting platform, slide the previously moved Side Plates (F) along the Load
Bars (J) until the trolley wheels are over the beam flange and the Stirrups (H) are lined up with the
previously made marks (step 6 above) on the Load Bars (J) (see Figure 3-18).
13) Lower the pallet just enough until the trolley wheels are resting on the beam flange.
14) Check that all 4 trolley wheels rest correctly on the beam and that the clearance between the wheel
flange and the edge of the beam is 5/64 inch (2 mm) maximum at all 4 wheels (see Figure 3-19).
15) Remove the straps/ropes securing the trolley hoist to the pallet and lower the pallet to the ground.
16) Using a torque wrench, fully tighten the Screws (D) attaching the Stiffening Plates (E) and the
Locking Nuts (G) of Stirrups (H) to the specified torque values shown in the Table 3-3.