8
Hoist and Trolley Motors
For optimum performance and maximum durability of
parts, provide an air supply to operate hoist and trolley
motors with 105 psi at 280 scfm (700 kPa/7 bar at 8 cu.
m/m).
Note:
Contact Technical Support Department for
operating requirements with optional 60 psi (400
kPa/4 bar system).
Mounting
Make certain your hoist is properly installed. A little
extra time and effort in doing so can contribute a lot
toward preventing accidents and helping you get the
best service possible.
Always make certain the supporting member from
which the hoist is suspended is strong enough to
support the weight of the hoist plus the weight of the
maximum rated load plus a generous factor of at least
500% of the combined weights.
W
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NG
G
• Ensure mounting structure is adequate
to hold the hoist and rated load, refer to
Table 2, General Specifications.
Installing Trolley Over End of
Beam
Pre-adjust trolley width for beam flange measurement.
Refer to
“Installing from Underneath Beam,” p. 8
Remove rail stop and slide trolley on end of beam.
Reinstall rail stop. If this procedure cannot be used due
to insufficient space or fixed limit stops the trolley must
be installed from underneath beam using the
procedure which follows.
Installing Trolley from
Underneath Beam
Refer to
and
1. Measure beam flange width ‘Y’ and compare with
measurement between trolley wheel flanges ‘X’.
The correct total clearance (X-Y) between beam and
trolley wheel flanges is 1/16 to 3/16 in. (1.6 to 4.7
mm).
2. To adjust trolley wheel spacing remove eight cotter
pins (173) and four pins (174) at each side plate
(150) or (184). Remove adjusting spacers (156) and
side plates and add or subtract an equal number of
adjusting spacers (156) between suspension yokes
(170) and side plates.
3. When desired trolley wheel spacing measurement
is achieved, install remaining adjusting spacers
(156) on outside of one pair of side plates. Install
suspension yoke pins (174) and cotter pins (173) on
ends of suspension yokes (170) bend ends apart to
secure. Use lifting lugs on trolley side plates to
adequately support hoist and side plates and raise
into place on beam flange.
C
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TIIO
ON
N
• To avoid an unbalanced load which may
damage trolley, hoist must be centered
under trolley using spacers (156).
4. Using lifting lugs on second pair of trolley side
plates raise into place beneath beam flange. Slide
side plates onto suspension yokes and push side
plates together.
5. Slide extra spacers (156) over free end of
suspension yoke (170). Insert suspension yoke pin
(174) into hole in suspension yoke (170). Secure by
installing cotter pins (173) and bending ends apart.
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E
• Trolley wheels ride on top of lower flange
of beam.
6. The pin (174) and outside spacers (156) must hold
trolley to adjustment in step 1. If side plates can be
spread farther apart, install more outside spacers
(156) between side plate (150) and pin (174).
7. Measure beam flange width ‘Y’ and compare with
measurement between rollers ‘Z’. Side roller
spacing measurement should be 1/16 to 3/16 in. (1.6
to 4.7 mm) greater than beam flange width.
8. Prior to using, test trolley. Check that trolley side
plates are vertical. Raise a load equal to rated
capacity of hoist 6 to 7 in. (130 to 180 mm) off floor
and operate trolley along entire length of beam.
9. Remove connecting plates (159) by removing
capscrews (157) and lockwashers (158) after
installation is complete. Ensure beam stops are
installed.
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• Refer to Product Parts Information
Manual for other parts not listed.
Rack Drive (optional feature)
Pre-Installation Checks
Refer to
.
Before welding rack segments onto trolley beam,
install rack segments on the bottom of the beam lower
flange and clamp in place. Mount trolley on the lower
beam flange.
Measure gap between outside diameter of drive pinion
and root of rack segment teeth. Trolley drive pinion and
rack teeth must have a 0.06 to 0.10 inch (1.5 to 2.5 mm)
clearance.
