WPG MRT4 Series User manual

Rev 3.0/7-21 #35202AFT1
INSTRUCTIONS
MANUAL 908 W. Main • P.O. Box 368
Laurel, MT USA 59044
800-548-7341 (phone)
406-628-8231 (phone)
406-628-8354 (fax)
www.WPG.com
KEEP FOR FUTURE REFERENCE
INTENDED FOR USE BY SKILLED
TECHNICAL PROFESSIONALS • READ AND
UNDERSTAND BEFORE INSTALLING AND USING
Stock number: 95723
MRT4 ADAPTABLE-LENGTH LIFT BAR

#35202AFT Rev 3.0/7-212

Rev 3.0/7-21 #35202AFT1
SPECIFICATIONS .....................................................................................2
FEATURES...............................................................................................3
INSTALLATION ........................................................................................4
TOINSTALL THE ADAPTABLE-LENGTH LIFT BAR ..................................................4
ASSEMBLY..............................................................................................5
TOSELECT THE APPROPRIATE CONFIGURATION ..................................................5
TOSET UPTHE SHORT CONFIGURATION...........................................................6
TOSET UPTHE LONG CONFIGURATION ............................................................6
REPLACEMENT PARTS.............................................................................7
LIMITED WARRANTY ..............................................................................8
TOOBTAIN REPAIRS OR WARRANTY SERVICE.....................................................8
TABLE OF CONTENTS

Product
Description
This lift bar is designed for applications requiring increased horizontal reach at the lift point or
applications involving minimal clearance between the lifter and the hoisting equipment, such as
installations under eaves, gables or overhangs.
Stock Number 95723
Maximum
Load Capacity
with Long
Configuration (standard)*
with Long Reversed
Configuration*
with Short
Configuration*
with Short Reversed
Configuration*
700 lbs [320 kg] 600 lbs [270 kg] 650 lbs [295 kg] 500 lbs [225 kg]
Weight
Increase
10 lbs [5 kg]
Note: Make sure to add the weight of all options to the Lifter Weight when you are selecting appropriate
hoisting equipment (see ASSEMBLY in lifter's OPERATING INSTRUCTIONS).
Horizontal Reach
Increase 7-3/4" [20 cm] with reverse configurations*
Overhead Clearance
Reduction 6-3/4" [17 cm] with short configurations*
#35202AFT Rev 3.0/7-212
* To view lift-bar configurations, see illustrations below and “TOSELECT THE APPROPRIATE CONFIGURATION”.
SPECIFICATIONS

Rev 3.0/7-21 #35202AFT3
Features shown here are underlined on their first appearance in each section following.
1 LIFT POINT 2 LOWER LIFT BAR SEGMENT 3 UPPER LIFT BAR SEGMENT
4 1/2-13 x 4" HEX HEAD BOLT (2x) 5 1/2-13 HEX NUT 6 1/2"LOCKWASHER
7 1/2" FLAT WASHER 8 1/2-13 x 4½" HEX HEAD BOLT (2x) 9 HEX NUT
10 LOCK WASHER 11 FLAT WASHER
For information about specific parts, see “REPLACEMENT PARTS”.
FEATURES

#35202AFT Rev 3.0/7-214
INSTALLATION
TOINSTALL THE ADAPTABLE-LENGTH LIFT BAR
1) Remove the original lift bar from the
vacuum lifter:
1.1) Remove the cotter pin (A) from the
end of the tilt pin (B).
1.2) Remove the hex head bolt (C) and
its washer from the opposite end.
This will enable you to slide the tilt
pin out from the center section (D).
1.3) Remove the tilt pin and the original
lift bar. Make sure to lay out the
outer flat washer (E), the foam
washer (F) and the machine
bushings (G) in the appropriate
order for installing the new lift bar.
2) Install the Adaptable-Length Lift Bar (H):
2.1) Slide the new lift bar into position
as shown in the illustration.
2.2) Install the tilt pin (B) and its
associated hardware in the same
order as originally installed. In
particular, the machine bushings
(G) must go inside of the plates of
the Adaptable-Length Lift Bar.
Make sure that the hex head bolt
(C)and a new cotter pin hold the
tilt pin (B) securely in place.
Note: Whenever necessary, clean hardware and replace any worn-out hardware (see
“REPLACEMENT PARTS”). In particular,the cotter pin must be replaced, as it is only intended
for one-time use.

Rev 3.0/7-21 #35202AFT5
ASSEMBLY
TOSELECT THE APPROPRIATE CONFIGURATION
Before suspending the vacuum lifter from hoisting equipment as directed in the “ASSEMBLY”
section of the lifter's OPERATING INSTRUCTIONS, assemble the Adaptable-Length Lift Bar in the
appropriate configuration for the intended use.
Note: When the lift point is reversed and/or the Adaptable-Length Lift Bar is
shortened or lengthened, make sure that the lifter still has sufficient load capacity
for the intended use.
The lift bar’s length can be adjusted and/or thebar’s lift point can be reversed, as necessary:
•
1A
1C
1B
1D
For normal applications (see “BEFORE USING THE
LIFTER” in lifter's OPERATING INSTRUCTIONS), use
the standard configuration (fig. 1A).
• For applications requiring increased horizontal
reach, use the long reversed configuration (fig.
1B).
• For applications involving minimal overhead
clearance, use the short configuration (fig. 1C).
• For applications involving minimal overhead
clearance and requiring additional reach, use the
short reversed configuration (fig. 1D).
Note: Either shortening or lengthening the Adaptable-
Length Lift Bar — and/or reversing its lift point — affects
the hang angle of the lifter and the load. The operator
should anticipate and compensate for this change.

#35202AFT Rev 3.0/7-216
TOSET UPTHE SHORT CONFIGURATION
1)
1A
Remove the two 4½" hex head bolts and
associated hardware (items A in fig. 1A) that
secure the lift point the upper lift bar
segment.
1) Remove the lift point from the segment.
2) Remove 4" hex head bolts and associated
hardware (items B in fig. 1A) that secure the
upper lift bar segment.
Note: Store 4" hex head bolts and associated
hardware for later use.
3) Remove the upper lift bar segment from the
lower lift bar segment.
4) Position the lift point on the lower lift bar
segment, as necessary for the intended
application (see “TOSELECT THE APPROPRIATE
CONFIGURATION”).
5) Connect the lift point to the lower lift bar
segment: Reinstall 4½" hex head bolts and
associated hardware, and tighten securely.
TOSET UPTHE LONG CONFIGURATION
1) Remove the two 4½" hex head bolts and associated hardware that secure the lift point to
the lower lift bar segment.
1) Remove the lift point from the segment.
2) Connect the lift bar segments.
3) Install the 4" hex head bolts and associated hardware on the upper lift bar segment and
tighten securely.
4) Position the lift point on the upper lift bar segment, as necessary for the intended
application (see “TOSELECT THE APPROPRIATE CONFIGURATION”).
5) Connect the lift point to the upper lift bar segment: Reinstall 4½" hex head bolts and
associated hardware, and tighten securely.
ASSEMBLY

Stock No. Description Qty.
49180 End Plug 1
12826 1/2" SAE Flat Washer 10
12760 1/2" Split Lock Washer 4
11124 1/2-13 Hex Nut 4
10858 1/2-13 x 4-1/2" Hex Head Bolt 3
10854 1/2-13 x 4" Hex Head Bolt 2
Rev 3.0/7-21 #35202AFT7
SERVICE ONLY WITH IDENTICAL REPLACEMENT PARTS,
AVAILABLE AT WPG.COM OR THROUGH AN AUTHORIZED WPG DEALER
REPLACEMENT PARTS

#35202AFT Rev 3.0/7-218
LIMITED WARRANTY
Wood's Powr-Grip®(WPG) products are carefully constructed, thoroughly inspected at various
stages of production, and individually tested. They are warranted to be free from defects in
workmanship and materials for a period of one year from the date of purchase.
If a problem develops during the warranty period, follow the instructions below to obtain
warranty service. If inspection shows that the problem is due to defective workmanship or
materials, WPG will repair the product without charge.
Warranty does not apply when ...
• modifications have been made to the product after leaving the factory
• rubber portions have been cut or scratched during use;
• repairs are required due to abnormal wear and tear, and/or;
• the product has been damaged, misused or neglected.
If a problem is not covered under warranty, WPG will notify the customer of costs prior to
repair. If the customer agrees to pay all repair costs and to receive the repaired product on a
C.O.D. basis, then WPG will proceed with repairs.
TOOBTAIN REPAIRS OR WARRANTY SERVICE
For purchases in North America:
Contact the WPG Technical Service Department. When factory service is required, ship the
complete product – prepaid – along with your name, address and phone number to the street
address listed at the bottom of this page. WPG may be reached by phone or fax numbers listed
below.
For purchases in all other localities:
Contact your dealer or the WPG Technical Service Department for assistance. WPG may be
reached by phone or fax numbers listed below.
Wood's Powr-Grip Co., Inc.
908 West Main St.
Laurel, MT 59044 USA
406-628-8231 (phone)
800-548-7341 (phone)
406-628-8354 (fax)