Table of Contents
Advertisement
Safetran's Torque Wrench Kit permits torque measurements to be taken from the ½ inch hexagon
end of the motor shaft providing a simpler method than that of using a spring scale on the arm. The
kit also supplies ratchets for hand cranking the gate mechanism.
The torque wrench is calibrated for both inch-pound and foot-pound readings through the 240 to 1
gear ratio to the ½ inch hexagon end of the motor shaft.
NOTE: Other torque wrenches should not be used.
The Torque Wrench Kit consists of:
·
Torque Wrench
·
Ratchet Wrench (3/8 inch drive)
·
Ratcheting Box End Wrench (1/2 and 9/16 inch openings)
·
Socket (½ inch, 3/8 inch drive)
·
Hex Key Wrench (3/16 inch)
·
Tool Box
·
Instruction Sheet
Warning: Disconnect power to gate mechanism before inserting tools for hand cranking.
The gate mechanism hand crank feature may be used either to crank the gate up, or in a case
where the arm has been sheared off, to crank the counterweights to the horizontal position. The
tools required are a ratchet wrench with 3/8 inch drive, a ½ inch socket for 3/8 inch drive, and a
ratcheting box end wrench for ½ inch hexagon shaft; all of which are included in the Safetran
Torque Wrench Kit.
1. Place ratcheting box end wrench over the hexagon shaft and slide towards motor. The ratchet
should be set in the direction to prevent its rotation backward ( ON to raise arm, OFF to raise
counterweights).
2. Place the socket ratchet wrench over the end of the hexagon shaft and crank in the desired
direction.
3. At the desired height, align the hole in the lower gear with the hole in the gear frame and insert
a 3/8 inch pin or bolt. The gear train should be locked in this manner whenever working with the
unbalanced condition of removing or replacing an arm or counterweights.
T
W
ORQUE
RENCH
H
C
AND
RANKING OF
K
#070981-X
IT
G
M
ATE
ECHANISM
12
Advertisement
Table of Contents
