WOOD'S POWR-GRIP MRTALPR4FS625DC User manual

KEEP FOR FUTURE REFERENCE
INSTRUCTIONS
International Version
MODEL NUMBERS: MRTALPR4FS625DC,
MRTALPR4FS10TDC
SERIAL NUMBER: ___________
(please see serial label and record number here)
LOW-PROFILE MANUAL ROTATOR / TILTER 600
DC-VOLTAGE, WITH DUAL VACUUM SYSTEM
& PAD FRAME T-ARM ASSEMBLIES
(AVAILABLE WITH REMOTE CONTROL SYSTEM)
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]

View Quick Start Guide.

Rev 11.3/1-17 1 MRTALPR4-DC: #35057
TABLE OF CONTENTS
SPECIFICATIONS............................................................................................................ 3
WARNINGS ..................................................................................................................... 4
OPERATING FEATURES................................................................................................... 5
ASSEMBLY....................................................................................................................... 7
TO SET UP THE LIFTER ................................................................................................................7
TO INSTALL/REMOVE T-ARM ASSEMBLIES..................................................................................... 8
To Connect/Disconnect Vacuum Hoses..........................................................................................................9
INTENDED USE ............................................................................................................. 10
LOAD CHARACTERISTICS ........................................................................................................... 10
OPERATING ENVIRONMENT .......................................................................................................11
DISPOSAL OF THE LIFTER .......................................................................................................... 11
TYPICAL APPLICATIONS ............................................................................................................12
OPERATION .................................................................................................................. 12
BEFORE USING THE LIFTER........................................................................................................ 13
Taking Safety Precautions ..........................................................................................................................13
Performing Inspections and Tests ...............................................................................................................13
Preparing to Use the Optional Remote Control System .................................................................................14
TO ADJUST THE PAD FRAME....................................................................................................... 15
TO APPLY THE PADS TO A LOAD.................................................................................................. 16
Powering up the Lifter................................................................................................................................16
Positioning the Lifter on the Load ...............................................................................................................16
Sealing the Pads against the Load...............................................................................................................17
Reading the Vacuum Gauges ......................................................................................................................17
Vacuum Level on Optimal Surfaces .............................................................................................................17
Vacuum Level on Other Surfaces ................................................................................................................17
TO LIFT AND MOVE THE LOAD ....................................................................................................19
Positioning the Lift Bar ...............................................................................................................................19
Interpreting the Warning Buzzer and Lights.................................................................................................19
Monitoring Vacuum Indicators ....................................................................................................................19
Monitoring the Low Vacuum Warning Buzzer ...............................................................................................20
Controlling the Lifter and Load....................................................................................................................20
In Case of Power Failure ............................................................................................................................20
TO ROTATE THE LOAD EDGEWISE................................................................................................21
TO TILT THE LOAD ...................................................................................................................22
TO RELEASE THE PADS FROM THE LOAD .......................................................................................22
AFTER USING THE LIFTER..........................................................................................................23
Storing the Lifter........................................................................................................................................23
MAINTENANCE.............................................................................................................. 24
INSPECTION SCHEDULE.............................................................................................................24

Rev 11.3/1-17 2 MRTALPR4-DC: #35057
Every-Lift Inspection ..................................................................................................................................24
Frequent Inspection ...................................................................................................................................24
Periodic Inspection.....................................................................................................................................24
Infrequent Use...........................................................................................................................................25
TESTING SCHEDULE..................................................................................................................25
Operational Tests.......................................................................................................................................25
Load Test ..................................................................................................................................................25
MAINTENANCE SCHEDULE..........................................................................................................26
BATTERY TEST .........................................................................................................................26
BATTERY RECHARGE .................................................................................................................27
Using a Large Charger................................................................................................................................27
Using a Small Charger ................................................................................................................................28
BATTERY CHARGER TEST ...........................................................................................................28
VACUUM PAD MAINTENANCE......................................................................................................28
Friction Coefficient .....................................................................................................................................28
Inspection .................................................................................................................................................29
Cleaning ....................................................................................................................................................29
VACUUM TEST .........................................................................................................................30
REMOTE CONTROL SYSTEM TEST ................................................................................................30
TO REPLACE SEALING RING IN VPFS10T VACUUM PAD .................................................................31
AIR FILTER MAINTENANCE ........................................................................................................32
Filter Function and Conditions Requiring Service ..........................................................................................32
Filter Service Procedures ............................................................................................................................32
VACUUM PUMP MAINTENANCE −DYNAFLO DV1034204 ...............................................................33
Replacing a Diaphragm ..............................................................................................................................33
Replacing a Gasket/Flap Valves...................................................................................................................33
Replacing a Head Assembly ........................................................................................................................33
VACUUM SWITCH ADJUSTMENT ..................................................................................................34
Vacuum Switch Function ............................................................................................................................34
Adjustment Procedure ................................................................................................................................34
REPLACEMENT PARTS LIST .......................................................................................... 34
LIMITED WARRANTY.................................................................................................... 38

Rev 11.3/1-17 3 MRTALPR4-DC: #35057
SPECIFICATIONS
Maximum Load Capacity:
600 lbs [270 kg] based on Maximum Per-Pad Load Capacity of 150 lbs [68 kg], rated at 16" Hg
[-54 kPa] on clean, smooth, nonporous flat surfaces2
Power Source:
12 volts DC, 5 amps
Battery Capacity:
18 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 every 30° of revolution (when desired)
Vacuum Pump:
Diaphragm type, 2.5 SCFM [71 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 when 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 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 a 310-
320 MHz signal.
Available with Pad Frame Extension Arms and Pad Frame Rocker Arms for installing roof panels (see
Spec Sheet 8-11). See separate instructions about these and 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.wpg.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.
1
Standard with closed-cell foam rubber and/or replaceable sealing rings for rough or textured surfaces (see REPLACEMENTS
PARTS LIST).
2
Load Capacity is based on a friction coefficient of 1; see MAINTENANCE: VACUUM PAD MAINTENANCE: Friction Coefficient for
additional information.
Description:
Designed for use with a crane or other hoisting equipment, the MRTALPR4-DC lifters employ
vacuum to hold a load for lifting, and they provide manual 180° rotation and mechanically assisted,
manual 90° tilt movements for load manipulation.
Model Number:
MRTALPR4FS625DC
MRTALPR4FS10TDC
Vacuum Pads:1
(Four, with #60 filter screen)
6" x 25" [15 cm x 64 cm] nominal dimensions,
foam rubber (Model VPFS625),
spring-mounted with 1/2" [12 mm] travel
10" [25 cm] nominal diameter,
standard rubber (Model VPFS10T),
spring-mounted with 1/4" [7 mm]
Pad Spread:
(to outer edges)
Maximum:
37" x 92-1/2" [94 cm x 235 cm]
45¾" x 78¾" [116 cm x 200 cm]
Minimum:
20" x 92-1/2" [51 cm x 235 cm]
25¾" x 78¾" [65 cm x 200 cm]
Lifter Weight:
250 lbs [114 kg]
250 lbs [114 kg]

Rev 11.3/1-17 4 MRTALPR4-DC: #35057
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 11.3/1-17 5 MRTALPR4-DC: #35057
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 MRTALPR4FS625DC shown with Remote Control System option.
1 LIFT SPOOL
11 VACUUM PAD
22 VACUUM LIFT LIGHT
2 INSTRUCTION CANISTER
12 PAD FRAME T-ARM ASSEMBLY
23 RED STROBE LIGHT
3 RADIO TRANSMITTER (optional)
13 CONTROL HANDLE
24 VACUUM GAUGES
4 CONTROL HANDLE
14 RADIO RECEIVER (optional)
25 LOW VACUUM WARNING BUZZER
5 ROTATION RELEASE LEVER
15 POWER SWITCH
26 VACUUM RESERVE TANK
6 PAD FRAME
16 RELEASE BUTTON
27 BATTERY CHARGER
7 AMBER STROBE LIGHT (optional)
17 APPLY BUTTON
28 Cover for AIR FILTERS
8 QUICK CONNECTOR
18 ENABLE BUTTON
and VACUUM SWITCHES
9 COTTERLESS HITCH PIN
19 BATTERY TEST BUTTON
29 TILT RELEASE LEVER
10 SLIDING PAD MOUNT
20 BATTERY GAUGE
30 BATTERY
21 Cover for VACUUM PUMP
31 LIFT BAR

Rev 11.3/1-17 6 MRTALPR4-DC: #35057
1
2
5
4
3
1 EMERGENCY TRANSMITTER DISCONNECT
2 TRANSMISSION INDICATOR LIGHT
3 RELEASE BUTTON
4 TRANSMITTER POWER/ENABLE BUTTON
5 APPLY BUTTON
OPTIONAL RADIO TRANSMITTER

Rev 11.3/1-17 7 MRTALPR4-DC: #35057
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.
3
To 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.
3
When the Pad frame T-arm assemblies are installed on the pad frame (see illustration in OPERATING FEATURES), placing the
lift spool in the lowest position would create interference when the pad frame is rotated. To avoid this problem, place the lift
spool in one of the other two positions or remove the T-arm assemblies (see TO INSTALL/REMOVE T-ARM ASSEMBLIES to follow).

Rev 11.3/1-17 8 MRTALPR4-DC: #35057
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.
Use the hoisting equipment to raise the lifter out of the shipping container. Be careful to
avoid damaging any vacuum pads.
5) If necessary, install the pad frame T-arm assemblies as directed in the following section.
Remove the pad covers (when applicable) 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 INSTALL/REMOVE T-ARM ASSEMBLIES
1) Remove the cotterless hitch pin from the extension arm of one pad frame T-arm assembly.
2) Insert the end of the extension arm as far as possible into its socket on the lifter's main pad
frame as shown in the preceding illustration, so that the holes align for the cotterless hitch
pin.
Note: Be sure to install each extension arm in the correct socket (see illustration), in order
for the red strobe light to be visible.
3) Secure the extension arm in the pad frame by pushing the cotterless hitch pin through the
holes until the retaining ball emerges on the far side of the pad frame socket.
4) Connect the 2 vacuum hoses on each T-arm assembly to the nearest available connection
points on the main pad frame, as directed in the following section.
Note: The lifter's dual vacuum system is equipped with 2 air-line circuits, which are
identified by color-coded vacuum hoses. In order to ensure maximum effectiveness of the
dual vacuum system, the vacuum pads must be connected in an equal and alternating
distribution to the 2 circuits.
5) Repeat steps #1-4 to install the second T-arm assembly, as shown in the preceding
illustration.
6) To remove T-arm assemblies, reverse this procedure. Store removed T-arm assemblies in a
clean, dry location to protect them from environmental exposure. Set the vacuum pads
facing upward, because prolonged pressure against the rubber seals may cause them to
become distorted.