MAHLE CWL-20 Operation Manual
Operation Manual
Wheel lift system
MAHLE CWL-20
EN
U.S. Patent No. D357,106 & 5,484,134
en | 2 |
CWL
-20
EVERY P
ERSON WHO OPERATES THIS
READ THIS MANUAL
EQUIPMENT NEEDS TO KNOW AND
UNDERSTAND ALL OF THE INFORMATION IN
THIS MANUAL – FAILURE TO DO SO COULD
RESULT IN SERIOUS INJURY OR DEATH.
RETAIN FOR YOUR
CAREFULLY AND
RECORDS
CWL
-20 | 3 |
en
Contents
Contents
1. Safety Regulations ................................................ 4
1.1 Warnings ....................................................... 4
2. Foreword ................................................................ 5
2.1 From the manufacturer ................................. 5
3. Symbols Use .......................................................... 5
3.1 Signal words ................................................. 5
4. Responsibilities ..................................................... 6
4.1 Receiving inspection ..................................... 6
4.2 Owner and/or operator responsibilities ......... 6
5. Specifications ........................................................ 6
5.1 CWL-20......................................................... 6
6. Product Description .............................................. 7
6.1 Component identification .............................. 7
7. Operation ............................................................... 8
7.1 Preparing the lifts and vehicle ....................... 8
7.2 Raising a vehicle ........................................... 8
7.3 Pinning the lifts as stands ............................. 9
7.4 Lowering a vehicle to the ground .................. 9
7.5 Using the lifts with support stands .............. 10
Transferring a load to support stands ................... 10
Removing support stands ..................................... 10
8. Maintenance and Inspection .............................. 11
8.1 Structural inspection ................................... 11
8.2 Air hose inspection ..................................... 11
8.3 Maintenance instructions ............................ 11
8.4 Air control unit cleaning instructions ........... 12
8.5 Lift table adjustment ................................... 12
9. Troubleshooting .................................................. 13
10. Optional adapters ................................................ 13
Installing the adapters ........................................... 13
Using the adapters ................................................ 13
11. Maintenance Chart .............................................. 14
12. Notes .................................................................... 16
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CWL
-20
Safety Regulations
1. Safety Regulations
Use the lifts only in pairs, on the opposite ends of
the same axle.
1.1 Warnings
Failure to follow all of these safety instructions can
lead to severe injury or death from a sudden loss of
the load. Contact the manufacturer at the numbers or
address printed on the back cover of this manual if
you have any questions.
Anyone who operates this jack must read and
understand all the instructions and warnings
provided with this jack before being allowed to use
it. All operators must be careful, competent, trained,
and qualified in the safe operation of the jack. The
owner (or other responsible individual) must ensure
that any operator observes the proper safety
procedures for using this jack at all times. If the
operator does not read well or is not fluent in English,
the owner / manager must read and review the
instructions and warnings in the manual with the
operator in the operator's native language to be sure
that the operator will use the jack properly.
The owner / manager must keep this manual for
future reference, and make sure the warning labels
on the jack are legible and intact at all times.
Replacement labels and manuals are available from
the manufacturer. Call the manufacturer using the
contact information on the back cover of this manual
if you have any questions.
Make sure the load does not exceed the maximum
capacity of the lift. Maximum capacity is 20,000 lbs.
/ 9,070 kg. per lift. Never use the lift system to raise or
support more than maximum capacity per lift. Never
use a lift as a stand to support more than maximum
capacity per lift.
NEVER modify the product in any way.
Modifications may cause the lift to perform
improperly, resulting in injury or death.
Always use lift on a hard level surface, capable of
sustaining the load. Be sure surface is clean and free
of debris, cracks, and chips.
The lift system is designed to lift over-the-road
vehicles with rims of at least 21 inches in diameter
(14 inches in diameter if the manufacturer supplied
optional adapters are used). NEVER use the lift
system on vehicles with rims
diameter (14 inches if adapters are used).
less
than 21 inches in
NEVER use the lift system to raise a vehicle by the
frame or structural member. The lift is designed to
be used only beneath the vehicle tires.
To prevent tipping, never raise or lower just one
side of a vehicle.
NEVER lift an entire vehicle with the lift system.
Fig. 1: Warnings
Do not allow any part of your body under the
vehicle until both the lifts are pinned as stands.
NEVER use the lift system in conjunction with any
other equipment used to raise a vehicle.
Never use blocks, adapters, or accessories that
have not been provided by the manufacturer, or
cribbing devices of any kind with this lift system.
NEVER use the lift system as a wheel dolly for the
removal of tires.
NEVER allow the lift system to be used unless all
warning labels and instructional decals are in place
and legible.
NEVER use this jack to lower a vehicle if the
vehicle was raised using another lifting device or
devices. The vehicle should be lowered with the
same equipment that was used to properly raise it
(read and follow the warnings and instructions for this
other equipment).
Always use caution while operating this device and
remain mindful of how the device and load will react
during operation of this device.
Failure to understand and obey this warning may
result in personal injury or death.
CWL
-20 | 5 |
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Foreword
Immediate
or
injury.
impending
or
injury
Possible
injury
Possible
Possible property
2. Foreword
2.1 From the manufacturer
Thank you for your purchase. To complement the
offering of A/C, fluid and nitrogen service equipment,
MAHLE Service Solutions has partnered with Gray
Manufacturing to provide the highest quality hydraulic
and pneumatic equipment available for the professional
service technician. This equipment adheres to high
standards promised in the MAHLE guarantee including
the assurance of innovation and reliability that comes
with the Gray Manufacturing name. Please contact
MAHLE Service Solutions’ customer service at (800)
468-2321 or tech.mss@us.mahle.com with any
comments or questions.
3. Symbols Use
3.1 Signal words
Signal words call attention to a safety message or
messages, or a property damage message or messages,
and designate a degree or level of hazard seriousness.
Signal words used in this manual include:
Keyword
DANGER
WARNING
CAUTION
NOTICE
Probability of
occurrence
impending danger
Possible
danger
dangerous
situation
damage to
property
instructions not observed
Death
Death
Minor
damage
Severity of danger if
severe
severe
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CWL
-20
Responsibilities
4. Responsibilities
4.1 Receiving inspection
Before attempting to operate this equipment, thoroughly
read and understand this manual. Completely remove all
tape and packaging. Inspect the equipment immediately
upon delivery. If shipping damage is evident, inform the
delivering carrier immediately and contact the
manufacturer using the contact information on the back
cover of this manual.
4.2 Owner and/or operator responsibilities
The owner and / or user must have an understanding of
the manufacturer’s operating instructions and warnings
before using this system. The use of portable lifting
devices is subject to certain hazards that cannot be
avoided by mechanical means, but only by the exercise
of intelligence, care, and common sense. Personnel
involved in the use and operation of equipment shall be
careful, competent, trained, and qualified in the safe
operation of the equipment and its proper use when
servicing motor vehicles and their components.
Examples of hazards are dropping, tipping, or slipping of
vehicles or their components caused primarily by
improperly securing loads, overloading, off-centered
loads, use on other than hard level surfaces, and using
equipment for a purpose for which it was not designed.
Warning information should be emphasized and
understood.
5. Specifications
5.1 CWL-20
Model CWL-20 US units Metric units
Maximum capacity (each lift) 20,000 lb 9,070 kg
Maximum capacity (system) 40,000 lb 18,140 kg
Maximum air pressure 155 psi 10.7 bar
Minimum wheel diameter (w/o
adapters)
Minimum wheel diameter (w.
adapters)
Maximum tire to fender
clearance
System weight 1964 lb 890.9 kg
Weight per lift 982 lb 445.4 kg
Adapter weight 22 lb 10 lb
Width 45 in 114.3 cm
Depth 44 in 111.8 cm
Height (lowered) 63 in 160.0 cm
Height (raised) 93 in 236.2 cm
21 in 53.3 cm
14 in 35.6 cm
8 in 20.3 cm
Air pressure requirements (used in pairs)
The owner / manager must make this manual available to
all personnel using this jack at your direction. They must
read and understand the contents of this manual. If the
operator is not fluent in English, the manufacturer’s
instructions and warnings shall be read to and discussed
with the operator in the operator’s native language by
the purchaser / owner, making sure that the operator
comprehends its contents and observes the proper
procedures for use of this jack.
Owner and / or user must study and maintain for future
reference the manufacturer’s instructions. Owner and /
or user are responsible for keeping all warning labels and
instruction manuals legible and intact. Replacement
labels and literature are available from the manufacturer.
Weight Air pressure
10,000 lbs.
15,000 lbs.
20,000 lbs.
25,000 lbs.
30,000 lbs.
35,000 lbs.
40,000 lbs.
40 psi
59 psi
78 psi
97 psi
116 psi
134 psi
152 psi
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