Wood’s Powr-Grip MRTALPCH611LDC User manual

KEEP FOR FUTURE REFERENCE
INSTRUCTIONS
International Version
MODEL NUMBERS: MRTALPCH611LDC,
MRTALPCH6HV11DC, MRTALPCH610DCO
SERIAL NUMBER: ___________
(please see serial label and record number here)
MANUAL ROTATOR / TILTER
LOW-PROFILE, DC-VOLTAGE
WITH DUAL VACUUM SYSTEM
AND CHANNEL-STYLE PAD FRAME
READ ALL INSTRUCTIONS AND WARNINGS
BEFORE OPERATING THIS LIFTER
DESIGNED FOR THE MATERIALS HANDLING PROFESSIONAL
P.O. Box 368 –908 West Main
Laurel, MT USA 59044
phone [phone]
phone [phone]
fax [phone]

Rev 8.0/6-13 1 MRTALPCH6-DC: #35054
TABLE OF CONTENTS
SPECIFICATIONS............................................................................................................ 3
WARNINGS ..................................................................................................................... 4
OPERATING FEATURES................................................................................................... 5
ASSEMBLY....................................................................................................................... 7
TO SET UP THE LIFTER ................................................................................................................ 7
TO CHANGE THE PAD FRAME CONFIGURATION ................................................................................8
To Connect/Disconnect Vacuum Hoses..........................................................................................................8
To Install/Remove Pad Frame Extensions ......................................................................................................9
INTENDED USE ............................................................................................................. 10
LOAD CHARACTERISTICS ........................................................................................................... 10
OPERATING ENVIRONMENT .......................................................................................................11
DISPOSAL OF THE LIFTER ..........................................................................................................11
OPERATION .................................................................................................................. 12
BEFORE USING THE LIFTER........................................................................................................12
Taking Safety Precautions ..........................................................................................................................12
Performing Inspections and Tests ...............................................................................................................12
Confirming the Pad Frame Configuration .....................................................................................................13
Preparing to Use the Optional Remote Control System .................................................................................13
TO APPLY THE PADS TO A LOAD..................................................................................................14
Positioning the Lifter on the Load ...............................................................................................................14
Powering up the Lifter................................................................................................................................14
Sealing the Pads against the Load...............................................................................................................14
Reading the Vacuum Gauges ......................................................................................................................15
Vacuum Level on Optimal Surfaces .............................................................................................................15
Vacuum Level on Other Surfaces ................................
.............

Rev 8.0/6-13 2 MRTALPCH6-DC: #35054
MAINTENANCE ............................................................................................................. 21
INSPECTION SCHEDULE.............................................................................................................21
Every-Lift Inspection ..................................................................................................................................21
Frequent Inspection ...................................................................................................................................21
Periodic Inspection.....................................................................................................................................21
Infrequent Use...........................................................................................................................................22
TESTING SCHEDULE..................................................................................................................22
Operational Tests.......................................................................................................................................22
Load Test ..................................................................................................................................................22
MAINTENANCE SCHEDULE..........................................................................................................23
BATTERY TEST .........................................................................................................................23
BATTERY RECHARGE .................................................................................................................23
BATTERY CHARGER TEST ...........................................................................................................24
VACUUM PAD MAINTENANCE......................................................................................................24
Friction Coefficient .....................................................................................................................................24
Inspection .................................................................................................................................................25
Cleaning ....................................................................................................................................................25
VACUUM TEST .........................................................................................................................26
REMOTE CONTROL SYSTEM TEST ................................................................................................26
AIR FILTER MAINTENANCE ........................................................................................................27
Filter Function and Conditions Requiring Service ..........................................................................................27
Filter Service Procedures ............................................................................................................................27
VACUUM PUMP MAINTENANCE −DYNAFLO DV1032102 ...............................................................28
Replacing the Diaphragm ...........................................................................................................................28
Replacing the Gasket/Flap Valves................................................................................................................28
Replacing the Head Assembly .....................................................................................................................28
VACUUM PUMP MAINTENANCE −THOMAS 107CDC20 ..................................................................29
Replacing the Diaphragm ...........................................................................................................................29
Replacing the Intake Valve Flapper .............................................................................................................29
Replacing the Exhaust Valve Flapper and Head Gasket .................................................................................29
VACUUM SWITCH ADJUSTMENT ..................................................................................................30
Vacuum Switch Function ............................................................................................................................30
Conditions Requiring Readjustment .............................................................................................................30
Adjustment Procedure ................................................................................................................................31
REPLACEMENT PARTS LIST .......................................................................................... 32
LIMITED WARRANTY.................................................................................................... 33

Rev 8.0/6-13 3 MRTALPCH6-DC: #35054
SPECIFICATIONS
Description:
Designed for use with a crane or other hoisting equipment, MRTALPCH6-DC lifters employ vacuum to hold
a load for lifting, and they provide manual 180° rotation and manual 90° tilt movements for load
manipulation.
Model Number:
MRTALPCH611LDC
MRTALPCH6HV11DCO
MRTALPCH610DCO
Vacuum Pads:1
(Six of standard rubber, spring-mounted with 1/8" [3 mm] travel and #60 filter screen)
11" [28 cm] nom. diameter,
lipped (Model G3370)
10" [25 cm] nom. diameter,
lipped (Model HV11)
10" [25 cm] nom. diameter,
concave (Model G0750)
Pad Spread:
(to outer edges)
Minimum:
53¾" x 12" [1365 x 305 mm]
52¾" x 11" [1340 x 279 mm]
51¾" x 10" [1314 x 254 mm]
Maximum:
79¼" x 12" [2010 x 305 mm]
78¼" x 11" [1988 x 279 mm]
77¼" x 10" [1962 x 254 mm]
Load Capacity:
(rated at 16" Hg [-54 kPa] on clean, smooth, nonporous flat surfaces2)
Per-Pad:
184 lbs [83.5 kg]
150 lbs [68 kg]
150 lbs [68 kg]
Maximum w/4 pads:
700 lbs [320 kg]
600 lbs [270 kg]
600 lbs [270 kg]
Maximum w/6 pads:
1100 lbs [500 kg]
900 lbs [410 kg]
900 lbs [410 kg]
Lifter Weight:
125 lbs [57 kg]
131 lbs [60 kg]
118 lbs [54 kg]
Power Source:
12 volts DC, 10 amps (with Thomas pump) or 3 amps (with Dynaflo pump)
Battery Capacity:
7 amp-hours
Tilt Capability:
Manual, 90°, with mechanical advantage that minimizes operator effort and automatic latching in upright
position
Rotation Capability:
Manual, 180°, with automatic latching at each ¼ revolution (when desired)
Vacuum Pump:
Diaphragm type, 1 SCFM [28 liters/minute] nominal airflow
Dual Vacuum System:
2 vacuum system circuits allow the lifter to maintain the vacuum level in one circuit even if an unexpected
vacuum loss occurs in the other one (eg, due to load breakage).
Vacuum Reserve Tanks:
2 vacuum reservoirs help prevent immediate vacuum loss in case of power failure and extend battery life
by reducing pump cycles required to maintain vacuum.
Vacuum Gauges:
2 dial gauges indicate current vacuum level in positive inches of Hg and negative kPa.
Vacuum Lift Light:
Green light is energized whenever vacuum is higher than the level required to lift the maximum load weight
(16" [-54 kPa]).
Low Vacuum Warning Buzzer: Maximum Alarm Volume = 103 dBA at 2 ft [60 cm]. While the lifter is powered up, an audible alarm
warns the operator whenever vacuum is not sufficient for lifting the maximum load weight.
Options:
Available with Model EO8RC1 - Remote Control System. This option features a radio transmitter and
receiver that can activate apply and release functions at distances up to 250 ft [76 m]. The system uses
either a 310-320 or a 433-434 MHz signal, depending on requirements in your geographical location.
See separate instructions about other options.
Operating Elevation:
Maximum = 6000 ft [1828 m]
Operating Temperatures:
32° to 104° F [0° to 40° C]
Service Life:
This lifter is designed to have a service life of at least 20,000 lifting cycles, when used and maintained as
intended. Vacuum pads, filter elements and other wear-out items are excluded; see MAINTENANCE and
REPLACEMENT PARTS LIST for more information. For the DISPOSAL OF THE LIFTER after its service life, see
INTENDED USE.
ASME Standard BTH-1:
Design Category "B", Service Class "0" (see www.powrgrip.com for more information)
!!-CE-!! Note: This symbol appears in the INSTRUCTIONS manual only when requirements of a CE Standard are different from requirements of
other standards that also apply to this vacuum lifter. CE requirements are mandatory in geographical areas where CE Standards apply, but may
be optional in other locations.
1Available with optional closed-cell foam rings for rough or textured surfaces (Model MRTALPCH6HV11FDCO), as well
alternative rubber compounds for special applications (see REPLACEMENTS PARTS LIST).
2Load Capacity is based on a friction coefficient of 1; see MAINTENANCE: VACUUM PAD MAINTENANCE: Friction Coefficient for
additional information.

Rev 8.0/6-13 4 MRTALPCH6-DC: #35054
WARNINGS
Powr-Grip is pleased to offer the most reliable vacuum lifters available.
Despite the high degree of security provided by this product, certain
precautions must be observed to protect the operator and others.
Always wear personal protective equipment that is appropriate for the material being handled.
Follow trade association guidelines.
Always operate the lifter under conditions approved for its design (see INTENDED USE:
OPERATING ENVIRONMENT).
Never operate a lifter that is damaged, malfunctioning, or missing parts.
Never operate a lifter if the sealing edge of any vacuum pad is cut or otherwise damaged.
Never remove or obscure warning labels.
Never operate a lifter if the Load Capacity or any warning appears to be missing or obscured.
Always make certain the contact surfaces of the load and all vacuum pads are clean prior to
applying the pads (see MAINTENANCE: VACUUM PAD MAINTENANCE).
Never exceed the Load Capacity or attempt to lift loads the lifter is not designed for (see
INTENDED USE: LOAD CHARACTERISTICS).
Never attempt to lift cracked or broken glass with this lifter.
Always position the vacuum pads correctly on the load prior to lifting (see OPERATION: TO APPLY
THE PADS TO A LOAD).
Never lift a load when any vacuum indicator shows inadequate vacuum.
Never touch the vacuum release controls during a lift. This may result in loss of vacuum and
release of the load.
Never allow people to ride on the lifter or the load being lifted.
Never lift a load higher than necessary or leave suspended loads unattended.
Never lift a load over people.
Always keep other personnel far enough away from the lifter to avoid injury in the event of an
unexpected load release.
Always place the power control in the inactive position and, when possible, disconnect the
power source before opening any enclosure on the lifter. (Only applicable to powered lifters)
Always remember that modifications to the lifter may compromise its safety. Wood’s Powr-Grip
cannot be responsible for the safety of a lifter that has been modified by the customer. For
consultation, contact Wood's Powr-Grip (see LIMITED WARRANTY).
Never disengage both the rotation latch and the tilt latch at the same time.
If the lifter is equipped with a Remote Control System, never operate the lifter remotely unless
there is clear communication about intended actions (eg, releasing load) with all personnel
near the lift. In addition, the operator must visually verify the status of the lifter and load
prior to remote operations.

Rev 8.0/6-13 5 MRTALPCH6-DC: #35054
OPERATING FEATURES
Note: Components featured in the following instructions for assembling, operating or
maintaining the vacuum lifter are underlined on their first appearance in each section.
Standard MRTALPCH611LDC shown with Remote Control System option.
1 LIFT SPOOL
10 BATTERY GAUGE
19 VACUUM GAUGE
2 BATTERY CHARGER
11 ENABLE BUTTON
20 ROTATION RELEASE LEVER
3 VACUUM RESERVE TANK
12 APPLY BUTTON
21 Cover for AIR FILTERS
4 Cover for BATTERY
13 RADIO RECEIVER (optional)
22 QUICK CONNECTOR
5 CONTROL HANDLES
14 STROBE LIGHT (optional)
23 LIFT BAR
6 TILT RELEASE LEVER
15 VACUUM RELEASE BUTTON
24 PAD FRAME EXTENSION
7 Cover for VACUUM PUMP
16 POWER SWITCH
25 VACUUM PAD
8 VACUUM LIFT LIGHT
17 Enclosure with VACUUM SWITCH
26 PAD FRAME
9 LOW VACUUM WARNING BUZZER
18 BATTERY TEST BUTTON

Rev 8.0/6-13 6 MRTALPCH6-DC: #35054
1 TRANSMISSION INDICATOR LIGHT
2 TRANSMITTER POWER/ENABLE BUTTON
3 RELEASE BUTTONS
4 APPLY BUTTONS
5 EMERGENCY TRANSMITTER DISCONNECT
OPTIONAL RADIO TRANSMITTER

Rev 8.0/6-13 7 MRTALPCH6-DC: #35054
ASSEMBLY
TO SET UP THE LIFTER
1) Open the shipping container and remove all materials for restraining or protecting the vacuum
lifter. Save the container for use whenever the lifter is transported.
2) If necessary, assemble the lifter's lift bar as follows: One
segment of the lift bar can be removed, to reduce overall lifter
dimensions for shipping. If so, orient the removable segment
(1) as shown in the illustration, and slide it over the other
segment until the bolt holes align. Reinstall the bolts and all
associated hardware (2); then tighten both bolts securely.
3) Position the lifter's lift spool as follows: The adjustable lift spool
assembly provides 3 different lift points (see illustration), in
order to optimize the lifter's hang angle and/or its overall height
for the intended use.3To change the lift spool position, remove
the retaining bolt (3) and, if necessary, loosen the pivot bolt (4).
Next pivot the lift spool assembly until the bolt holes align for the
desired spool position. Then reinstall the retaining bolt and all
associated hardware. Tighten both bolts securely.
4) Suspend the lifter from a crane as follows: Select hoisting
equipment (crane and hoist, when applicable) rated to carry the
maximum load weight plus the lifter weight (see
SPECIFICATIONS: Maximum Load Capacity and Lifter Weight).
Note: Any application of the lifter must conform to all statutory
or regulatory standards that relate to the hoisting equipment when used in its geographical
location (eg, relevant OSHA standards in the USA).
Disengage the tilt latch (see OPERATION: TO TILT THE LOAD) and raise the lift bar to a vertical
orientation. Then attach the hoisting equipment hook to the lift spool.
WARNING: Hoisting equipment hook must be fitted with restraining latch to
prevent lift spool from slipping off under any circumstances.
Note: Some hoisting equipment hooks could interfere with an upright load that extends
beyond the lifter's pad frame. If the load would contact the hook during lifter operation, the
operator must prevent this by attaching a sling (or other rigging that does not interfere with
the load) between the hook and the lift spool.
WARNING: Any sling used must be rated to carry maximum load weight plus
lifter weight.
3When the pad frame is used in the vertical orientation (see illustration in OPERATING FEATURES), placing the lift spool in the
lowest position creates interference with the pad frame extension. To avoid this problem, place the lift spool in one of the other
two positions or remove the pad frame extensions (see TO CHANGE THE PAD FRAME CONFIGURATION to follow).

Rev 8.0/6-13 8 MRTALPCH6-DC: #35054
Use the hoisting equipment to raise the lifter out of the shipping container. Be careful to
avoid damaging any vacuum pads.
5) Arrange the pad frame in the configuration that will provide optimal support of the load while
lifting (see TO CHANGE THE PAD FRAME CONFIGURATION to follow). Remove the pad covers and
save them for use whenever the lifter is stored.
6) Connect the electrical connectors uniting the battery to the battery charger and the vacuum
generating system. Now the lifter is operational.
7) Perform Operational and Load Tests for the lifter as directed in MAINTENANCE: TESTING
SCHEDULE.If the lifter is equipped with a Remote Control System, also perform the REMOTE
CONTROL SYSTEM TEST (see MAINTENANCE).
TO CHANGE THE PAD FRAME CONFIGURATION
The lifter offers two pad frame configurations to accommodate different load dimensions and
weights (see SPECIFICATIONS: Pad Spread and Load Capacity). Select the configuration that
provides optimal support across the load surface and minimizes load overhang (see OPERATION:
BEFORE USING THE LIFTER). To support longer, heavier loads (see Maximum Pad Spread and
Maximum Load Capacity in SPECIFICATIONS), both pad frame extensions must be installed on
the pad frame and the vacuum hoses must be connected to the vacuum pads located on the
extensions.
WARNING: Removing any extension or disconnecting the corresponding
vacuum pad reduces load capacity of lifter.
To support smaller dimensions and weights, the pad frame extensions may be removed, and the
corresponding vacuum hoses may be disconnected, provided that the lifter still has
sufficient capacity to support the load in question (see INTENDED USE: LOAD
CHARACTERISTICS). The Maximum Load Capacity is reduced when the pad frame extensions are
removed. Always assemble the pad frame with both extensions installed or both removed, to
keep the lifter balanced.
To Connect/Disconnect Vacuum Hoses
The vacuum hose for the vacuum pad on each pad frame
extension is connected to or disconnected from the vacuum
system by means of a quick connector. To connect the
vacuum hose, push the male and female ends of the connector
together until they lock. To disconnect the vacuum hose, move
the release ring on the female end away from the male end until
the connector separates.
WARNING: Make sure vacuum hoses are coiled or
routed to avoid damage during rotation or tilt.
Make sure all vacuum hoses are secure and routed to avoid being punctured, pinched, kinked,
entangled, abraded or otherwise damaged while the lifter is in operation.
Note: Whenever a quick connector is disconnected, the corresponding vacuum pad does not
contribute to the load capacity, whether or not the extension is mounted on the pad frame.
QUICK CONNECTOR
1 FEMALE END
2 MALE END