211
SJ82 T, SJ86 T
229040ABA
Boom
Section 5 – Procedures
If raise speed does not slow as specified, adjust the
limit switch using the following steps:
NOTE
Before performing any adjustment procedures,
make sure LS6 is installed properly. Check
angular position of the limit switch. Switch roller
arm must not be close to the limits of its rotation
and is free to swing to either side.
Make sure the switch roller rotates freely and
is in full contact with the flat edge of the master
cylinder link.
M62349AA
Limit switch arm and roller
Adjustment Procedure:
1.
Position the boom angle at 57° from horizontal.
2.
Loosen the limit switch mounting screws.
3.
Position the switch so that the roller is just
touching the master cylinder link and the switch
contact is open. Adjust the switch using both
horizontal and vertical slots until an audible click
sound is heard as the switch trips. The multi-
meter should show no continuity.
4.
Tighten the switch mounting screws.
5.
Test the switch function by raising and lowering
the boom.
6.
Adjust the switch position as required so that
it trips at 57° and boom movement slows as it
approaches full extension.
7.
Check repeatability by raising and lowering the
boom.
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