WPG LP6F User manual

KEEP FOR FUTURE REFERENCE
OPTIONAL PAD
INSTRUCTIONS
MANUAL NUMBER: 35240
ALTERNATIVE VACUUM PADS &
ALTERNATIVE RUBBER COMPOUNDS
FOR VACUUM EQUIPMENT
READ ALL INSTRUCTIONS AND SAFETY RULES
BEFORE USING THESE PRODUCTS
DESIGNED FOR THE TECHNICAL SERVICE PROFESSIONAL
P.O. Box 368 –908 West Main
Laurel, MT USA 59044
phone [phone]
phone [phone]
fax [phone]

Rev 3.1/5-17 1 PAD OPTIONS: #35240
TABLE OF CONTENTS
TABLE OF CONTENTS ...................................................................................................... 1
SPECIFICATIONS............................................................................................................ 2
ALTERNATIVE VACUUM PADS &RELATED SPECIFICATIONS............................................................... 2
ALTERNATIVE RUBBER COMPOUNDS &RELATED CHARACTERISTICS................................................... 2
SAFETY............................................................................................................................ 3
INSTALLATION ............................................................................................................... 4
INTENDED USE ............................................................................................................... 5
TO CALCULATE THE REVISED LOAD CAPACITY................................................................................. 5
TO CALCULATE THE REVISED PAD SPREAD .....................................................................................6
TO DETERMINE RESTRICTED USE OF RUBBER COMPOUNDS .............................................................. 6
ADDITIONAL CONSIDERATIONS ...................................................................................................7
OPERATION .................................................................................................................... 7
BEFORE USING THE VACUUM EQUIPMENT ......................................................................................7
MAINTENANCE................................................................................................................ 8
INSPECTION SCHEDULE ..............................................................................................................8
Infrequent Use..............................................................................................................................................................................8
TESTING SCHEDULE ...................................................................................................................9
Operational Test ...........................................................................................................................................................................9
Load Test ...................................................................................................................................................................................... 9
VACUUM PAD MAINTENANCE ..................................................................................................... 10
Pad to Load Friction Coefficient .................................................................................................................................................10
Pad Inspection ............................................................................................................................................................................10
Pad Cleaning ...............................................................................................................................................................................11
VACUUM TEST......................................................................................................................... 11
REPLACEMENT PARTS LIST .......................................................................................... 12
LIMITED WARRANTY.................................................................................................... 14

Rev 3.1/5-17 2 PAD OPTIONS: #35240
SPECIFICATIONS
ALTERNATIVE VACUUM PADS &RELATED SPECIFICATIONS
ALTERNATIVE RUBBER COMPOUNDS &RELATED CHARACTERISTICS
1
Maximum Per-Pad Capacity is rated at 16" Hg [-54 kPa] for the standard rubber compound on clean, dry, plain glass, with a
friction coefficient of 1. Since a number of factors may compromise the friction coefficient (see MAINTENANCE: VACUUM PAD
MAINTENANCE: Pad to Load Friction Coefficient), a qualified person should evaluate the effective lifting capacity for the actual
application. In addition to the effect of friction between the vacuum pads and load, the lifting capacity may be affected by the
following load characteristics: rigidity, strength, surface conditions, overhang, angle, center of gravity and temperature.
Note: Double the Maximum Per-Pad Capacity when pads are used on Flat Lifters. However, any calculated capacity may not
exceed the original Maximum Overall Capacity listed for the lifter (see INTENDED USE: TO CALCULATE THE REVISED LOAD CAPACITY).
2
This indicates the actual dimensions of vacuum pads when attached to a flat surface.
3
This indicates pad height when attached to a flat surface. It does not include spring height or other factors affecting distance
of pad from pad frame. See INTENDED USE for more information.
4
Weight is listed for vacuum pads made from our Standard Rubber compound; weights may vary somewhat for alternative
rubber compounds.
5
This indicates the percentage of Maximum Capacity achievable with the relevant rubber compound under ideal conditions, as
compared to the Maximum Capacity with the standard rubber compound.
6
This indicates the average length of outdoor service, based on testing under controlled conditions.
7
Not recommended for outdoor use.
Model
Number:
LP6F
TL6F
G0695
VPFS9
VPCS9
G0750
HV11(F)
VPFS10T
G3370
Description:
(w/nominal
diameter)
6" [15 cm],
flat
6" [15 cm],
concave
8" [20 cm],
flat
9" [23 cm],
flat
9" [23 cm],
concave
10" [25 cm],
concave
10" [25 cm],
flat with lip
(foam ring)
10" [25 cm],
flat with
ring insert
11" [28 cm],
flat with lip
Maximum
Per-Pad
Capacity:1
50 lbs
[22.5 kg]
50 lbs
[22.5 kg]
85 lbs
[38.5 kg]
125 lbs
[56.5 kg]
125 lbs
[56.5 kg]
150 lbs
[68 kg]
150 lbs
[68 kg]
150 lbs
[68 kg]
175 lbs
[79.5 kg]
Maximum
Outside
Diameter:2
6-1/8"
[156 mm]
6-5/32"
[156 mm]
7-15/16"
[202 mm]
9-19/32"
[244 mm]
9-1/8"
[232 mm]
10"
[254 mm]
11"
[279 mm]
11-3/4"
[298 mm]
12-1/16"
[306 mm]
Attached
Height:3
15/32"
[12 mm]
5/8"
[16 mm]
25/32"
[20 mm]
7/8"
[22 mm]
25/32"
[20 mm]
31/32"
[25 mm]
1"
[25 mm]
27/32"
[21 mm]
27/32"
[21 mm]
Weight:4
0.41 lbs
[0.19 kg]
0.5 lbs
[0.23 kg]
1.32 lbs
[0.6 kg]
1.6 lbs
[0.73 kg]
1.3 lbs
[0.59 kg]
1.7 lbs
[0.77 kg]
3 lbs
[1.36 kg]
4 lbs
[1.81 kg]
2.7 lbs
[1.22 kg]
Rubber Compound:
Oil-
Resistant
Heat-
Resistant
UV-
Resistant
Extra-
Flexible
Coating-
Compatible
Low-Marking
& UV-Resistant
Percent of Max Capacity:5
(Friction Coefficient)
100%
(1.0)
45%
(0.45)
75%
(0.75)
75%
(0.75)
100%
(1.0)
80%
(0.8)
Outdoor Service:6
1 year
8 years
4 years
<0.5 years7
8 years
4 years
Maximum Load Surface
Temperature:
150° F
[65° C]
400° F
[204° C]
225° F
[107° C]
150° F
[65° C]
150° F
[65° C]
225° F
[107° C]

Rev 3.1/5-17 3 PAD OPTIONS: #35240
SAFETY
The following safety rules must be observed to protect
the operator and others from potential dangers.
Operate the relevant vacuum equipment under conditions approved for its design (see
INTENDED USE: OPERATING ENVIRONMENT in original equipment instructions).
Do not operate vacuum equipment if the sealing edge of any vacuum pad is cut or
otherwise damaged.
Make certain the contact surfaces of the load and all vacuum pads are clean prior to
applying the pads (see MAINTENANCE: VACUUM PAD MAINTENANCE).
Position the vacuum pads correctly on the load (see OPERATION in original equipment
instructions).
Do not make any modifications to the vacuum pads (see LIMITED WARRANTY).

Rev 3.1/5-17 4 PAD OPTIONS: #35240
INSTALLATION
1 PAD FASTENER
2 MOUNTING PLATE
3 PAD SPRING
4 VACUUM PAD
1) Carefully disconnect vacuum hoses and remove old vacuum pads, saving any related parts.
2) Install new vacuum pads as shown in these illustrations. Replace any damaged pad
fasteners (shoulder bolts or machine screws) as necessary (see REPLACEMENT PARTS LIST).
3) Tighten all fasteners securely and reconnect the vacuum hoses.
4) Perform the VACUUM TEST and the LOAD TEST (see MAINTENANCE) before resuming normal
operation of the vacuum equipment.
4
1
2
3
3
4
1
2

Rev 3.1/5-17 5 PAD OPTIONS: #35240
INTENDED USE
The operator must read, understand and follow all directions and safety rules found in the
INTENDED USE section of the original instruction manual for the vacuum equipment, along with
the following additions and changes .
TO CALCULATE THE REVISED LOAD CAPACITY
Whenever the installation of vacuum pads on vacuum equipment results in a change to either the
model or the rubber compound of the vacuum pads, a qualified person must calculate the revised
Maximum Load Capacity, as follows:
1) Determine the model number of the vacuum pads currently installed (shown on back of pad)
and find the corresponding Maximum Per-Pad Capacity (see SPECIFICATIONS: ALTERNATIVE
VACUUM PADS &RELATED SPECIFICATIONS).
For example, if the current vacuum pads are model VPFS9, the Maximum Per-Pad Capacity
is 125 lbs [56.5 kg].
2) Determine whether the vacuum pads are made from an alternative rubber compound. If not,
proceed to step 3.
8
If so, find the relevant Percentage of Maximum Capacity (see
SPECIFICATIONS: ALTERNATIVE RUBBER COMPOUNDS &RELATED CHARACTERISTICS) to determine
whether the Per-Pad Capacity of the pads is affected: Use the Friction Coefficient
corresponding with the percentage stated for the alternative rubber, and multiply this by the
Per-Pad Capacity identified in step 1. The result is the revised Maximum Per-Pad
Capacity for the pads installed.
9
For example, if the VPFS9 vacuum pads are made from UV-Resistant rubber, the revised
Maximum Per-Pad Capacity is 75% of 125 lbs, or 0.75 x 125 = 93.75 lbs [42.5 kg].
3) Determine the number of vacuum pads currently installed and functioning on the vacuum
equipment, and multiply this number by the ( revised ) Maximum Per-Pad Capacity. Compare
the result against the Maximum Overall Load Capacity stated in the original instruction manual
for the vacuum equipment. Note that calculated capacities may not exceed the
original Maximum Overall Load Capacity , due to structural limitations of equipment
design. In such cases, the original Load Capacity applies. Otherwise, the calculated result is
the revised Maximum Overall Load Capacity for the vacuum equipment.9
For example, if the vacuum equipment has 6 vacuum pads of model VPFS9 in UV-Resistant
rubber, the revised Maximum Overall Load Capacity is 6 x 93.75 lbs = 562.5 lbs [255 kg].
4) Whenever applicable, replace the original Load Capacity markings with the revised Maximum
Per-Pad Capacity and revised Maximum Overall Capacity, based on the vacuum pads currently
installed on the vacuum equipment. Likewise, replace the Maximum Load Capacities shown
in the original instruction manual with the revised Maximum Load Capacities.
8
If the pads are made from standard rubber, there is no change in Maximum Per-Pad Capacity.
9
Note that all revised Maximum Capacities represent the greatest capacities possible under ideal conditions and other
circumstances described. A qualified person must determine the effective lifting capacity, taking into account any factors that
may compromise lifting capacity, including those affecting the coefficient of friction (see MAINTENANCE: VACUUM PAD MAINTENANCE:
Pad to Load Friction Coefficient).

Rev 3.1/5-17 6 PAD OPTIONS: #35240
5) Whenever the original instruction manual for the vacuum equipment refers to Maximum Load
Capacities, be sure to use the revised Maximum Load Capacities, as calculated above.
TO CALCULATE THE REVISED PAD SPREAD
When the model of vacuum pad has been changed on vacuum equipment, this normally results
in different Pad Spread dimensions, due to differences in the Maximum Outside Diameter of
vacuum pads (regardless of the nominal pad diameter). Calculate the revised Pad Spread
dimensions as follows:
1) Find the previous and current models of vacuum pads (see SPECIFICATIONS: ALTERNATIVE
VACUUM PADS &RELATED SPECIFICATIONS). Then find the corresponding Maximum Outside
Diameter for each pad model.
For example, if the previous pad model was G3370 and the current model is VPFS9, the
Maximum Outside Diameters are 12-1/16" [306 mm] and 9-19/32" [244 mm],
respectively.
2) Subtract the smaller pad diameter from the larger one, to find the difference in diameters.
Using Pad Spread dimensions shown in the original instruction manual for the vacuum
equipment, either add or subtract this difference from the Pad Spread, in accordance with the
size of pads currently installed on the vacuum equipment (ie, larger or smaller diameter).
The results are the revised Pad Spread dimensions.
For example, the difference in diameters for pad models G3370 and VPFS9 is 12-1/16"
minus 9-19/32" equals 2-13/32" [306 mm –244 mm = 62 mm]. Since the change is to a
smaller pad diameter, simply subtract the difference from the relevant Pad Spread
dimensions.
3) Replace the Pad Spread dimensions shown in the original instruction manual with the revised
Pad Spread dimensions.
4) Whenever the original instruction manual for the vacuum equipment refers to Pad Spread
dimensions, be sure to use the revised Pad Spread dimensions, as calculated above.
TO DETERMINE RESTRICTED USE OF RUBBER COMPOUNDS
The length of Outdoor Service is provided (see SPECIFICATIONS: ALTERNATIVE RUBBER COMPOUNDS
&RELATED CHARACTERISTICS) in order to determine the minimum interval for vacuum pad
replacement (see MAINTENANCE: VACUUM PAD MAINTENANCE: Pad to Load Friction Coefficient).
The Maximum Load Surface Temperature is provided (see SPECIFICATIONS: ALTERNATIVE RUBBER
COMPOUNDS &RELATED CHARACTERISTICS) in order to avoid loads with surface temperatures which
could damage the vacuum pads. Attempting to lift loads with greater than recommended
surface temperatures could result in a load release and potential injury to the equipment
operator or others nearby.

Rev 3.1/5-17 7 PAD OPTIONS: #35240
ADDITIONAL CONSIDERATIONS
The Attached Height of vacuum pads is provided (see SPECIFICATIONS: ALTERNATIVE VACUUM PADS
&RELATED SPECIFICATIONS), in case a change in pad model could affect the functionality of
equipment. For example, instructions for vacuum lifters normally show the clearance between
the pad face and the pad frame, in case the lifter is attached to windows with external muntins
or other loads with similar obstacles. In such cases, a qualified person should compare the
Attached Height of the previous vacuum pad with the one currently installed, to determine the
difference. This figure should be added or subtracted, as appropriate, to determine the net
difference in clearance.
The Weight of vacuum pads is provided (see SPECIFICATIONS: ALTERNATIVE VACUUM PADS &
RELATED SPECIFICATIONS), in case a change in pad model could significantly affect the weight of
equipment. For example, when choosing appropriate hoisting equipment for vacuum lifters, a
qualified person must combine the Lifter Weight and Maximum Overall Load Capacity to
determine what capacity is required for the hoisting equipment. Although a change in pad
weight is rarely so great as to affect this decision, the weight of all options must be included in
the Lifter Weight, in order to select adequate hoisting equipment.
OPERATION
BEFORE USING THE VACUUM EQUIPMENT
The operator must determine whether the vacuum equipment is capable of performing each
intended task, in accordance with the original instruction manual. In addition, the operator
must take into account any changes resulting from the installation of different
vacuum pads , such as differences in Load Capacity or Pad Spread (see INTENDED USE). In all
other respects, follow the OPERATION directions found in the original instruction manual for the
vacuum equipment.

Rev 3.1/5-17 8 PAD OPTIONS: #35240
MAINTENANCE
INSPECTION SCHEDULE
Perform inspections routinely, according to the following frequency schedule. If any deficiency
is detected, correct it before using the vacuum equipment (see REPLACEMENT PARTS LIST when
necessary) and perform the next most frequent inspection.
Action
Every Lift
Frequent10
(20-40 hours)
Periodic11
(250-400 hours)
Examine the vacuum pads for contamination or
debris, and clean them as necessary (see
VACUUM PAD MAINTENANCE: Pad Cleaning).



Examine the vacuum pads for visual damage.



Examine the load surface for contamination or
debris, and clean it as necessary.



Perform the VACUUM TEST.


Note: See following sections (VACUUM PAD MAINTENANCE, VACUUM TEST) for details about these
inspections.
Infrequent Use
If vacuum equipment is used less than 1 day in a 2-week period, perform the Periodic Inspection
each time before using the vacuum equipment .
10
The Frequent Inspection is also required whenever the vacuum equipment is out of service for 1 month or more.
11
The Periodic Inspection is also required whenever the vacuum equipment is out of service for 1 year or more. If necessary,
return the product to Wood’s Powr-Grip or an authorized dealer for repair (see LIMITED WARRANTY).