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Page 19 of 38
Manual Tiger SS11-PLH En 201704 v3.2
The overload protection device is normally set to engage when a load of approximately 135% (±10%) of the WLL is lifted,
unless otherwise specified during purchasing. Determine what your target overload limit is for the unit before you begin to set
the overload mechanism.
5.
A weight greater than the target load limit is required on the test bed to set the load limiter.
6.
Put the handle switch into the up position and start lifting the load.
7.
Use the 46mm socket or spanner to tighten the Lock Nut until hand-tight.
8.
Operate the handle until the load limiter slips, observing the load cell reading as the load increases.
9.
Repeat the process of tightening the Lock Nut and operating the handle, as in steps 7 and 8, and the load will
increase in increments until the target overload limit is showing on the load cell without any slippage.
10.
Once the target load has been established lower and reload the hoist up to 10 times to ensure consistent readings.
11.
Look through the threaded holes on the Lock Nut and locate an unobstructed gap in the Tab Washer.
12.
Using a medium strength thread retainer product (threadlocker), place the Grub Screw in this threaded hole in the
Lock Nut and through the gap in the Tab Washer and tighten so that the Tab Washer is locked into place.
13.
Operate the hoist up and down, lifting and lowering the load, to ensure the target overload is being consistently
maintained.
14.
Check that the hoist is operating correctly and refit the parts removed in item 1 above.
Pawls
When the lever hoist is disassembled for periodic inspections, check the S-12 Brake Pawls for free movement and apply a light
coat of grease to the pawl shaft. If you are re-fitting the pawls, make sure that the pawl springs are seated correctly around the
pawls and mounting points. The pawls should fully engage into the ratchet gear teeth in the correct orientation as in the
images below. Newer versions of the hoist have a dimple indicator on the pawl. The pawl is fitted with the dimple facing you.
Pinion Shaft
During maintenance it is essential that close inspection is given to Pinion Shaft (S-03/PRO-03) and the Switch Set for Free
Wheel (S-38/PRO-38). Refer to Chapter 13 for exploded diagrams and parts. This maintenance can be performed using the
following methods:
On a built up unit:
Hold the S-34/PRO-34 Grip Ring and then check for any wear by rotating the S-38/PRO-38 Switch Set left and right and feel for
excessive movement on the splines or between the two mating surfaces. As with all mechanical components wear will become
evident over time.
On stripped down components:
Hold the pinion shaft (S-03/PRO-03) in a vertical plane and place the S-38/PRO-38 Switch Set onto the splines. Whilst holding
the shaft try rotating the S-38/PRO-38 Switch Set left and right on the splines and feel for any excessive wear between the two
mating surfaces.
Dimples facing upwards
SS11
PROLH