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Ift and, Ove the, Positioning the lift bar – Wood’s Powr-Grip MTCL8FS10TDC User Manual

Page 21: Interpreting the warning buzzer and lift light, Monitoring vacuum indicators

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Rev 6.0/12-13

19

19

MTCL8HV11FDC: #35079

T

O

L

IFT AND

M

OVE THE

L

OAD

Positioning the Lift Bar

WARNING: Lift bar must be oriented vertically to lift load.

Never lift the load from a flat position with the lift bar latched parallel to

the load. Always disengage the tilt latches (see T

O

T

ILT THE

L

OAD

to

follow) and raise the lift bar to a vertical orientation before attempting
to lift.

Interpreting the Warning Buzzer and Lift Light

A lifter’s Load Capacity is rated at a vacuum level of 16" Hg [-54 kPa] (see SPECIFICATIONS).

After the lifter has attained this level, the low vacuum warning buzzer turns

off

automatically and

the green vacuum lift light turns

on

automatically, to signal that the lifter is ready to lift the

maximum load weight. As vacuum continues to increase, the vacuum pumps turn off to

conserve battery energy.

WARNING: Never attempt to lift load unless green lift light is illuminated.

Do not attempt to lift the load unless the lift light is illuminated; such an attempt could result in a

load release and possible injury to the operator.

Monitoring Vacuum Indicators

The vacuum lift light and both vacuum gauges must remain completely visible to the operator, so

that they can be monitored throughout the entire lift.

WARNING: Vacuum indicators must be visible to operator throughout entire lift.

If the vacuum system experiences leakage while the lifter is attached to the load, the vacuum

pumps turn on and off automatically, as required to maintain sufficient vacuum for lifting the
maximum load weight. Under normal conditions, such intermittent cycling of the pump is no
cause for alarm.
However, if vacuum decreases significantly, the lift light turns

off

and the low vacuum warning

buzzer turns

on

, to signal the reduction in vacuum to the operator. If this occurs while you are

lifting a load, make sure both vacuum gauges show a vacuum level of 16" Hg [-54 kPa] or
higher. If not, move away and stay clear of the load until it can be lowered to the ground or a
stable support.

WARNING: Stay clear of any suspended load while vacuum level is lower than

16" Hg [-54 kPa].

Discontinue lifter use until the cause of the vacuum loss can be determined. If the pumps run at

intervals of five minutes or less while the lifter is attached to clean, smooth, nonporous materials,
a leak in the vacuum system is likely to be the cause. In this event, perform the V

ACUUM

T

EST

(see MAINTENANCE) and inspect the vacuum pads for damage (see MAINTENANCE: V

ACUUM

P

AD

M

AINTENANCE

: Inspection). If the vacuum loss cannot be remedied immediately, perform

inspection and maintenance as needed to identify and correct any deficiency before resuming
normal operation of the lifter.