2
Installation–Operation and Maintenance Instructions
1. Read your Torq/Gard
®
Clutch Installation-Operation
Instructions thoroughly before operating the unit, for your
safety and the protection of your equipment.
2. Double check to be sure the power is off and cannot be
turned on while working on the equipment.
3. Electrical power should be disconnected at the fuse box,
circuit breaker or motor starter.
4. The Torq/Gard clutch is designed to protect your machine and
will not protect against bodily injury.
5. Keep all objects such as hands, clothing, tools, etc. away
from rotating or moving parts.
6. Use safety glasses or equivalent to protect your eyes.
7. Do not manually re-engage the Torq/Gard clutch. (Refer to
“Automatic Reset” instruction.)
8. Do not adjust the torque while the clutch is disengaged.
(Refer to “Torque Setting” instruction.)
9. Do not exceed the recommended maximum rpm. (Refer to
Torq/Gard Clutch Rating Chart.)
10. The detector mechanism must electrically disconnect the
prime mover at the recommended rpm settings. (Refer to
“Overload Detection” instruction.)
11. Shaft mounting setscrews must clear the mounting bosses
or the clutch will not release upon overload. (Refer to
“Mounting the Torq/Gard Clutch” instruction.)
12. Shaft and detector mounting setscrews must be tight and
the recommended number used. (Refer to “Mounting the
Torq/Gard Clutch” instruction.)
The above list includes major safety points to be observed, but
should not be considered as limiting in safety precautions to be
followed.
Operating Principle
Torq/Gard overload clutches help protect the entire drive train of
your machinery from damage due to excessive torque generated
by overloads and jamming. The torque is adjusted by turning
the single hex-socket head control which adjusts the Torq/Gard
clutch to any setting within its load range. A spring-loaded cam
follower seated in a single hub cam detent causes the hub and
clutch body to rotate as a unit. When the pre-set torque limit is
exceeded by an overload condition, the follower is released from
the cam detent, disconnecting the hub from the body. Either the
hub or the body may be used as the input or output.
Note:
During overload, the Torq/Gard clutch produces a loud
audible report, which is a normal operating characteristic of the
clutch. In direct coupled applications, the modular designed Torq/
Gard can be used with Browning
®
Ever-Flex
™
couplings or chain
coupling kits, without modification to the clutch or couplings. Split
taper bushings are available for the coupling output.
Browning Torq/Gard single strand sprockets, for No. 40, 60, 80,
and 100 ANSI Standard roller chain drives, mount directly to the
clutch.
Table A–Sprocket Mounting Hardware
TG3/6
TG35A__K
#8-32 X .50 HHCS
TG20
20TG40A__K
#10-24 X .62 HHCS
TG60
TG40A__K
1/4-20 X .75 HHCS
TG200
TG60A__K
3/8-16 X 1.00 HHCS
TG400
TG80A__K
1/2-13 X 1.50 HHCS
TG800
TG100A__K
1/2-13 X 1.75 HHCS
Browning
®
Torq/Gard
®
Gearbelt pulleys are also available for 1/2”
pitch belts.
Before mounting the clutch on the
driving or driven shaft, your choice
of coupling or sprocket should be
attached to the Torq/Gard clutch.
Sprocket Installation
Browning Torq/Gard single strand
sprockets register with the drilled and
tapped mounting lugs on the adapter
end of clutch. Torq/Gard chain drives can be used as the driving or
driven member. See page 8 for sprocket availability.
1. Place the sprocket on the registered mounting lugs.
2. Select the correct length hex head capscrews (3 required)
from Table A.
NOTICE
Short screws may strip the mounting lug threads.
3. For maximum locking effect, (medium) spring lock washers
should be used under the hex head capscrews.
Gearbelt Pulley Installation
Follow the above mounting instructions for the Browning Torq/Gard
Gearbelt pulleys, using the longer hex head capscrews supplied
with the pulleys.
Chain Coupling Installation
1. Select the Browning chain
coupling components
from page 8 for the
applicable Torq/Gard clutch
model.
2. Mount the single strand
sprocket per the above
“Sprocket Installation”
instructions.
3. Place the Browning Split Taper
®
bushing sprocket over the
single sprocket, with the corresponding teeth in alignment.
4. Secure the two sprockets by wrapping the double strand roller
chain around the sprockets, insuring that the sprocket teeth
fully engage the chain.
5. Insert the chain connecting link in the chain ends and lock with
the spring clip (supplied with the connecting link).
When assembled correctly, the split taper bushing sprocket will
“float” for maximum misalignment capability.