6050-065-D-2-16
22
In addition to the mechanical slip clutch, this operator uses an inherent entrapment protection system (Type A) to further
reduce the possibility of injury should an entrapment occur. This entrapment protection system (Revering sensor) is
completely automatic
and will be activated
if the clutch fails to slip when an obstruction is sensed
during the open or close
cycle. This feature requires
no adjustment
by the installer or end user.
3.6 Inherent Entrapment Protection System
Jamb Nuts
Clutch
CAUTION:
Keep pedestrians and
vehicles clear of the gate while
adjusting and testing the clutch!
3.5 Clutch Adjustment
This vehicular gate operator is equipped with an inherent adjustable clutch “Type C” that can be used as an entrapment protec-
tion device. If the clutch is intended to be used as such, it must be adjusted to
NOT open or close the gate with a sustained
force greater than 40 lbs at the leading edge of the gate, except for the first 10 degrees of arc travel after any initiation of
movement.
The clutch
MUST
slip upon sensing an obstruction during the open or close cycle which will cause the gate to reverse direction.
For this system to function correctly, the gate must be properly installed and work freely in both directions. A good set of roller
bearing hinges is essential for proper swing gate operation.
Test the Clutch:
Obstruct the gate while it is in the
OPENING cycle.
The clutch
MUST
slip with no more than 40 Lbs of
force, then the gate will reverse direction for a
quarter of a second and
STOP
. If the clutch does not
slip, it is too tight. Repeat step 4 and re-adjust the
clutch.
Note: After the gate has reversed and
STOPPED
, the
operator will be in a “Soft Shutdown”. Press the
KEY SWITCH
on the circuit board to continue the
opening cycle after the obstruction has been
cleared.
Obstruct the gate while it is in the
CLOSING cycle.
The clutch
MUST
slip with no more than 40 Lbs of force, then the gate will
REVERSE
direction back to the open position.
If the clutch does not slip, it is too tight. Repeat step 4 and re-adjust the clutch.
Note:
After the gate has
reversed
back to the open position, the operator will be in a “Soft Shutdown”.
Press the
KEY SWITCH
on the circuit board to start the closing cycle again after the obstruction has been cleared.
1.
Be sure AC power switch is turned OFF whenever adjustments to the clutch are being made.
Loosen the
upper jamb nut to “un-lock” the lower jamb nut. Loosen the lower jamb nut.
2.
Manually move the gate so that it is positioned approximately half way open.
3.
Tighten the lower jamb nut finger tight then tighten it
ONE
turn with a wrench. Re-tighten the upper jamb nut.
4.
Turn AC power switch
ON
and press the
KEY SWITCH
on the circuit board. When the gate begins to open,
determine if the clutch is slipping. If the clutch is slipping, turn AC power OFF and tighten the lower jamb nut
one more turn
. This process may have to be repeated several times to get the clutch adjusted correctly.
Always start the gate from the half open position when adjusting the clutch.
Clutch Note:
The ideal clutch adjustment will allow the
operator to move the gate through its open and close travel
cycle
without
slipping, but
will
slip upon contact with an
obstruction with
no more than 40 Lbs of force
. This force
can be measured with a gate scale.
KEY SWITCH
Summary of Contents for Series 6050
Page 41: ...6050 065 D 2 16 37...
