Harrington Hoists and Cranes AHM Hoist User Manual
Page 18
18
3.9
Mounting the Hoist
3.9.1
Mini Trolley - Follow instructions below to install the trolley. Refer to Figure 3-6.
1) Remove the Top Hook Complete Set from the hoist and install the Suspender.
2) Refer to Table 3-1 for placement of Adjusting Spacers for the flange width “B” of the traversing
beam. The position of spacers differs with flange width. If the beam flange width is not listed in
Table 3-1, use the next size smaller and make adjustments in accordance with step 3. Use all 32
adjusting spacers provided.
3) Refer to Figure 3-6 and assemble the trolley Frames, Adjusting Spacers and Socket Bolts onto the
Suspender. Install and hand tighten the plain Nuts on the Socket Bolts. Verify that dimension “A”
is approximately 0.12 - 0.16 in (3-4mm) greater than “B” (flange width). If "A" does not fall within
the specified range, move spacers from inner to outer or from outer to inner as necessary to obtain
the proper "A" dimension, irrespective of the numbers in Table 3-1.
4) Install the trolley and hoist onto traversing beam using one of the following 2 methods:
Preferred Method – Sliding the trolley connected with 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.
Optional Method – If the trolley cannot be mounted from the end of the beam, loosen the plain
Nuts and spread the trolley Frames. Lift the trolley and hoist onto the beam from below. Push
the trolley frames together and hand tighten the plain Nuts.
5) Check for contact between all four trolley wheels and the rail surface. Shift the Trolley Frame until
all trolley wheels rest on the rail surface. Tighten the plain Nuts and install the two U-Nuts onto the
Socket Bolts tighten against the plain Nuts. Install the Split Pins onto the Socket Bolts and bend
securely.
6)
Incorrect number of adjusting spacers may cause the trolley to not move or to
drop. To avoid these hazards, always make sure to use all 32 spacers and confirm that A - B =
0.12 - 0.16 in (3-4mm).
7)
To prevent the trolley from dropping, firmly fasten the Socket Bolt, Nut and U-
Nut. Insert split pin and bend the ends 90 degrees or more.
Table 3-1 Number of Spacers
Rail Width mm (in)
Outside left
frame
Inside left
frame
Inside right
frame
Outside right
frame
50.8 (2)
8
8
6
8
58.7 (2 5/16)
6
9
8
7
63.5 (2 ½)
6
10
8
6
68.3 (2 11/16)
5
10
9
6
71.4 (2 13/16)
5
11
9
5
76.2 (3)
4
12
10
4
82.6 (3 ¼)
3
13
11
3
84.1 (3 5/16)
3
13
11
3
90.5 (3 9/16)
2
14
12
2
93.7 (3 11/16)
1
14
13
2
98.4 (3 7/8)
0
15
14
1
100 (3 15/16)
0
16
14
0