Wood’s Powr-Grip MRTARC811LDC - Manual (Page 15)

Rev 2.0/7-12 13 MRTA8-DC: #35076RC
Preparing to Use the Optional Remote Control System
If the lifter is equipped with a Remote Control System, the operator can engage the lifter's apply
and release functions at distances up to 250' [76 m], provided there is a direct and clear view of
the lifter and its status indicators from the operator location (see MAINTENANCE: R
EMOTE
C
ONTROL
S
YSTEM
T
EST
). When lifting a load from a remote location, the operator must monitor the
lifter at all times to make sure that it is functioning as intended. In addition, the operator must
exercise special care to ensure that the load is landed and supported correctly before releasing
the load (see A
BOUT THE
E
NABLE
S
WITCH AND
O
PTIONAL
S
TROBE
L
IGHT
and T
O
R
ELEASE THE
P
ADS FROM
THE L OAD to follow).
The Remote Control System is designed with safeguards which can affect the use of more than
one radio controlled lifter in the vicinity. If transmissions from multiple transmitters on the same
frequency occur simultaneously, these safeguards prevent each lifter from responding until a
clear transmission with an appropriate code is received. 6 Nevertheless, radio controlled lifters
should be tested to ensure that each transmitter controls only one lifter. The buttons located on
the lifter function regardless of any radio transmissions in the vicinity.
The radio transmitter is also equipped with an emergency transmitter disconnect that prevents
the transmitter from sending any transmission. This button should not need to be used, but may
have to be reset if accidentally engaged. To reset, twist the button clockwise while allowing it to
spring outward to its normal position.
T
O
A
PPLY THE
P
ADS TO A
L
OAD
Powering up the Lifter
Place the lifter's power switch in the ON ( ) position. 7 The blue power light remains
illuminated while the lifter is powered up. Keep the power switch in the ON position while lifting
a load. Any power interruption during a lift could result in the release of a load and possible
injury to the operator or others (see T
O
L
IFT AND
M
OVE THE
L
OAD
: In Case of Power Failure to
follow).
WARNING: Never turn power off while lifting.
If the lifter is equipped with a Remote Control System, activate the radio transmitter by turning
the transmitter power/enable switch to the "START" position and then releasing it, allowing it to
return to the "ON" position.
8 This switch also activates the enable function (see A
BOUT THE
E
NABLE
S
WITCH AND
O
PTIONAL
S
TROBE
L
IGHT
to follow).
6
Depending on how strong each transmitter’s signal is, a lifter also may respond intermittently in such cases. Intermittent
transmission generally would be noticed only when the operator tries to release a load, since this is the only situation requiring
transmitter buttons to be held.
7
When the operator powers up the lifter, either the stand-by function or the apply function is automatically activated, depending
on which was used last. If the vacuum pump or any other powered component fails to function while the lifter's power switch is
in the ON position, examine each circuit breaker (adjacent to power switch) to determine whether it has interrupted the electrical
circuit to the component. Although the operator can reset the circuit breaker, the power interruption may indicate an electrical
problem that requires attention. Correct any deficiency before resuming normal operation of the lifter (see wiring diagram
provided).
8
The radio transmitter turns off automatically, after a period of inactivity. The operator can also operate the lifter without using
the radio transmitter, if desired.