Owner's Manual for TA150KGMR1 Pneumatic Winches for Personnel Lifting
page 17
A12876A-1214
1.7
Setting Travel Limits
Adjust the travel limit switch setting to ensure operating within safe
parameters. Setting of the upper limit should prevent a minimum vertical
clearance of six (6) feet from the upper sheave block. The lower limit should
be set to maintain a minimum of 5 wraps of the wire rope around the drum at
all times.
Limit set points are dependent on speed of operation, use caution with setting
limits. Typically, limits should be set for the highest speed to be encountered.
A trained operator should be closely monitoring winch operation to ensure
that an improperly adjusted switch does not allow the rider to move beyond
the specified range. Travel limits are not intended as the primary means
of stopping winch operation or for the positioning of the rider, they are to
prevent over traveling.
1.7.1
SET LIMITS by performing the following actions:
a
REMOVE the limit switch cover.
b
LOOSEN the large locking screw in the center of the column. Individual
limits can now be set. Refer to Figure 8.
c
FOR UPPER LIMIT ADJUSTMENT turn the screw labeled "1" (red) on the
top of the cam counter-clockwise to reduce vertical travel, or clockwise to
increase vertical travel. Operate the winch and make adjustments until the
operation is stopped by the switch at the desired location. When the upper
travel limit has been reached, the indicator on the control will appear.
d
FOR LOWER LIMIT ADJUSTMENT turn the screw labeled "3" (yellow) on
the top of the cam clockwise to reduce vertical travel, or counter-clockwise
to increase vertical travel. Operate the winch and make adjustments until the
operation is stopped by the switch at the desired location.
When the lower
travel limit has been reached, the indicator on the control will appear.
e
AFTER SETTING BOTH LIMITS, tighten the locking screw and re-check
the limits. Re-install cover.
NOTE: THERE MUST A MINIMUM OF 4 REVOLUTIONS between
upper and lower travel limit for the switches to operate correctly.
Figure 8 – Setting Limits