Hubbell EH-09 User manual

The EH balancer is designed to be hung above the work
area from a stationary support, such as an eye bolt, or a
movable trolley (Fig 1). For best operation, balancer
should be hung directly above work area so that tool is
lowered vertically, not at an angle, when in use (compare
Fig 1-A and Fig 1-B, below). Hanging from trolley with
safety cable or chain affixed to second trolley is recom-
mended (Fig 1-C). Prior to installation, check to make
sure tool weight including air hose or power cable plus
fittings falls within the range shown on the balancer seri-
al plate. Contact your local distributor if it does not.
INSTALLATION
1. Hang balancer in desired location using hook at top of
balancer. Make sure safety latch on hook is in place to
prevent unhooking.
2. Attach safety chain or cable from eye at top of bal-
ancer to either a separate support (if statically mounted)
or to separate trolley.
3. Attach tool to balance cable by lifting tool to hook. DO
NOT attempt to pull hook down to tool.
ADJUSTING TENSION
1. Tension is adjusted by turning the hex drive on the
housing at the rear of the balancer (Fig 2). To increase
tension, turn the hex drive in a clockwise direction. To
decrease tension, turn hex drive counter-clockwise.
A. If balancer will not hold tool in raised position,
increase tension by turning drive clockwise.
B. If tool is difficult to pull down, decrease tension
by turning drive counter-clockwise.
NOTE: Avoid adjusting tension above or below rated
capacity of balancer.Tightening spring over its rated
capacity will shorten cable stroke and decrease spring
life. If spring is loosened to lower than minimum capaci-
ty, the safety device may engage preventing operation.
USING SPOOL LOCK
Activate spool lock (Fig 2) by pulling out slightly and
rotating 1/4 turn in a clockwise direction, inserting it into
hole in spool. Spool may have to be rotated slightly so
lock can line up with hole. Disengage by pulling out and
rotating 1/4 turn in a counter-clockwise direction.
Installation and Operation Instructions
EH-09 through EH-70 Tool Balancers
CAUTION
1. Prior to installation, make sure rated range of
balancer matches weight of tool to be used.
2. Check to make sure hook or trolley from which
balancer will hang will support six times combined
weight of balancer and tool.
3. A safety chain or cable MUST be installed between
eye on balancer to separate hanger or trolley.
ADJUST
TENSION
SPOOL LOCK
shown in
UNLOCKED
position
Figure 2
Figure 1
Safety
Chain or
Cable
AC B

ROUTINE MAINTENANCE
1. All bearings are pre-lubricated and require no periodic
lubrication.
2. Periodically check both hooks and cable for wear.
Replace if hooks or support show excessive wear or if
cable is frayed.
3. Periodically check safety chain or cable. Check fas-
teners for tightness. Tighten as required. Replace chain
or cable if there is undue wear.
4. Check to make sure all four safety stop pins (Fig 3)
are securely in place. Pins must be fully inserted and
secured with allen screw. Replace if missing.
SAFETY
STOP PIN
ALLEN
SCREW
Figure 3
600 South Clark Street • P.O. Box 26
Mayville, WI 53050
Phone: [phone]
Fax: [phone] 63049203.a