Harrington Hoists and Cranes (G)NTH Trolley - Manual (Page 15)

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3.3 Attachment Points & Mounting Location
3.3.1

Prior to attaching the hoist ensure that all attachment points, suspension
components and supporting structure are adequate to support the hoist and its load. Prior to mounting
the trolley (and hoist) ensure that the trolley beam and its supporting structure are adequate to support
the trolley, hoist and its loads. If necessary consult a professional that is qualified to evaluate the
adequacy of the suspension location and its supporting structure.
3.3.2

See Section 6.6 for outdoor installation considerations.
3.4 Installation of Trolley onto Beam
3.4.1 Assemble and adjust the trolley before attempting to install the trolley on the beam.
3.4.2 Preferred Method – Sliding the trolley connected with an electric chain hoist onto the traversing beam
from the beam end is the most convenient and recommended method. If the trolley can be mounted
from the end of the beam then: Remove the trolley end-stop from the beam and set the trolley on the
beam from the end. Securely re-install the trolley end stop on the beam.
3.4.3 Optional Method for Trolleys – If the trolley cannot be mounted from the end of the beam, complete the
installation as follows:
1) Remove the Shaft Stopper Pin from Suspension Shaft (See Figure 3-1).
2) If possible remove the outside Adjusting spacers and Reinsert the Shaft Stopper Pin. Spread the
trolley side plates apart.
3) Lift the trolley onto the beam so that Side Plate A rests on the beam's flange.
4) Hold Side Plate A securely so that it does not come off the beam then push the side plates
together so that all four wheels rest on the beam's flange.
5) Replace the Outside Adjusting Spacers and the Shaft Stopper Pin. Insert Split Pin, Bend the Split
Pin securely.