Hunter L451 User manual

4-Post Lift Rack Models L451 & 454
Operations Manual
Form 6899-T, 11-22 Supersedes Form 6899-T, 12-2021

Table of Contents
1. For Your Safety ............................................................................................................................................. 3
1.1. Decal List .......................................................................................................................................... 3
1.2. Decal Placement ................................................................................................................................ 3
1.3. Jack Decal Placement ...................................................................................................................... 10
1.4. Additional Safety Information ............................................................................................................ 15
2. Operation Instructions ................................................................................................................................. 16
2.1. Choking Procedure ........................................................................................................................... 16
2.2. Using the Workstep .......................................................................................................................... 16
2.3. Raising the Lift ................................................................................................................................. 17
2.4. Lowering the Lift ............................................................................................................................... 18
2.5. Unlock and Lock Slip Plates with PowerSlide Slip Plates (Optional) ..................................................... 19
2.6. Inflation Station (Optional) ................................................................................................................. 21
2.7. Jacking the Vehicle ........................................................................................................................... 22
3. Regular Maintenance .................................................................................................................................. 24
3.1. Corrosion ......................................................................................................................................... 24
3.2. Maintenance Schedule ..................................................................................................................... 24
3.3. Warranty Information ........................................................................................................................ 28
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1. For Your Safety
CALIFORNIA WARNING
This product may contain chemicals known to the State of California to cause cancer and reproducve harm.
www.P65Warnings.ca.gov
Please read and follow these decal instrucons to prevent equipment damage and/or personal injury. If any decal shown
in this manual has been removed, is missing, or cannot be read completely for any reason, contact your local service
representave for a replacement decal(s). Or call Hunter Engineering Company at 1-800-448-6848. A new warning label
kit, 20-3064-1 may be ordered free of charge. The kit will contain all the decals described in the lists below.
1.1. Decal List
• 128-202-2 - Hands O Decal
• 128-1197-2 - MAX WT 18000 LB
• 128-1089-3 - COMPOSITE RACK #3
• 128-1091-3 - COMPOSITE RACK #5
• 128-1088-3 - COMPOSITE RACK #2
• 128-1090-3 - COMPOSITE RACK #4
• 128-1552-2 4 POST OPERATION
• 128-1358-3 - LIFT RACK CONSOLE
• 128-245-2 - YELLOW & BLACK 12
1.2. Decal Placement
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NOTE
Both runways are labels the same. Not all Warning/Operaon labels are idened in diagram above.
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1.3. Jack Decal Placement
Jack Decal Kit List
•For 133-83-1 9,000lbs. Jack - Order decal kits 128-1281-3 and 128-1015-3
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• For all 6,000lbs. Jacks - Order decal kits 128-1015-3 and 128-1016-3
133-35-1 AND 133-67-1 4500 lb. Capacity
133-69-1 6000 lb. Capacity
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133-62-1 8000 lb. Capacity and 133-83-1 9000 lb. Capacity
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Jack Decals
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1.4. Additional Safety Information
Equipment Description: The product is li rack intend for automove vehicles to been driven on to the rack and lied up
to a desired height so the underside of the vehicle can be accessed for service or alignments.
Intended Use: The intended use is in the servicing and alignment of automove vehicles.
The transportaon, assembly, servicing and/or removal of equipment should only be done by a factor trained representa-
ve or distributor.
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2. Operation Instructions
Lift Operation Safety Rules: Read and familiarize yourself with these instrucons before operang li. Do not try to
operate an improperly funconing li. Do not aempt to use a li for any purposes other than liing vehicles. Properly
chock vehicle before operang li. Make sure li is clear of personnel and obstrucons before operang. Do not operate
a li with anyone on or under the li structure. Watch li and vehicle when operang. Do not operate a li with anyone
in the vehicle. Always set li on safety lock latches before working on the vehicle. Do not operate the vehicle while it is
raised on the li. Do not operate a li if the vehicle to be lied is supported on jacks or any other auxiliary devices. Do not
install or use any unauthorized liing devices or accessories. Perform regular maintenance in accordance with instrucons
in Secon Five
NOTE
It is advisable to use a second person as a “spoer” to give visual assistance to the driver when approaching
and driving onto and o the runways.
CAUTION
For safety, proper chocking of vehicle wheels is necessary to prevent the vehicle from rolling while posioned
on elevated runways.
2.1. Choking Procedure
Read and thoroughly familiarize yourself with these instrucons before operang the li. Adjust the turning angle gauges
(with lock pins installed) to match the tread width of the vehicle.
CAUTION
For safety, proper chocking of vehicle wheels is very important to prevent the vehicle from rolling while
posioned on elevated runways.
Drive the vehicle onto the rack, place the transmission in PARK, and SET the emergency brake. Place a wheel chock at the
front and rear of the le rear wheel. Leave the wheel chocks in place while elevang the li, performing service operaons
on the vehicle, and while lowering the li. Aer lowering the li, remove the wheel chocks from the front and rear of the
re before moving the vehicle.
2.2. Using the Workstep
NOTE
Worksteps are not provided for pit installaons. If worksteps are used in a pit installaon, each workstep must
be removed from the rack before lowering the rack into pit.
WARNING
The max height that the add-on step can be used is 39in (0.99 m).
The li is supplied with portable worksteps that ts into the side of the rack through specially designed cutouts.
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When using a workstep, always ensure the workstep is fully engaged and locked into the cutout in the side of the runway.
Always use two hands to install the workstep as follows:
• Align the workstep hanger brackets with the cutouts in side of li rack.
• Push the workstep forward and down unl the locks “snap” into place.
Note the photos below:
See Image Yellow Decal Not Visible
Correct Installaon, Fully Inserted - The workstep hanger brackets have been fully inserted through the cross-cutout and
are locked in place.
See Image Yellow Decal Visible
Improper Installaon, Parally Inserted - The workstep is only parally through the cutouts. The yellow decal indicates
the workstep is not locked onto the side of the runway. In this unsafe condion, the step can easily be pulled out of the
runway. Push step forward and down unl locked.
Check the stability of the workstep by pushing down on the stepping surface before standing on it.
When using the workstep, always use a safe, sturdy, OSHA-approved two-rung stepladder, as intermediate steps to mount
the workstep.
To remove workstep, simultaneously pull back tabs to disengage locks.
CAUTION
Do not use a workstep that is improperly installed. If the yellow decal indicates the workstep is not locked, the
step can pull out. Resulng injuries from falling are possible.
CAUTION
If using more than one portable workstep on one side of the li do not aempt to step across or jump from
one step to another. Serious injury could result from improper usage of the worksteps.
2.3. Raising the Lift
L45x 4 post lis have consoles mounted to the front le post. There are no controls on the pump housing. Check the li
and immediate area for obstrucons and remove any that are found. Verify that the turnplates and runway slip plates are
locked in place.
WARNING
Do NOT operate li with jacks in use. Serious injury may result if the li is raised or lowered with a vehicle
supported by jacks.
Depress and hold the “RAISE” buon. The pump will begin to operate, raising the li. Release the “RAISE” buon when the
li reaches the desired height. The pump will shut o and the li will stop.
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CAUTION
Listen for the sound of the mechanical locks passing over their detents. If the sound is not heard, release the
“RAISE” buon and refer to the troubleshoong secon of this manual.
Press and hold the “LOWER” buon unl the li stops lowering and mechanical locks engage.
CAUTION
Ensure mechanical locks are fully engaged before proceeding to service the vehicle.
2.4. Lowering the Lift
Remove all obstacles from under the rack and runways. Be certain the vehicle is resng rmly on the runways with chocks
both in front of and behind the le rear wheel.
WARNING
Do NOT operate li with jacks in use. Serious injury may result if the li is raised or lowered with a vehicle
supported by jacks.
CAUTION
Ensure the jacks are in the stored posion, before completely lowering the li.
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NOTE
On lis with PowerSlide, the slip plates automacally lock as the li is lowered to the oor.
Depress and hold the “RAISE” buon unl the li rises o the locks (approximately 1 inch [25 mm]). Depress and hold the
“LOCK RELEASE” buon to disengage the locks.
While connuing to hold the “LOCK RELEASE” buon, depress the “LOWER” buon unl the li reaches the desired
height.
Release both buons when the li reaches the desired height. Depress and hold the “lower” buon unl the mechanical
locks engage. If the li is being lowered completely, ensure the li rack is resng fully on the oor before removing the
wheel chocks. Remove all wheel chocks. Before removing vehicle from lowered li, verify that the turnplates and runway
slip plates are locked in place. Use lock pins if oponal PowerSlide feature is not present. Carefully drive the vehicle o the
runways.
2.5. Unlock and Lock Slip Plates with PowerSlide Slip Plates
(Optional)
Controls for the PowerSlide® slip plates are located either near li controls (-PS models) or on the FIA console (-IS models).
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For L45x lis without a FIA console (-PS models), operate PowerSlide as follows: Locate the “PowerSlide” switch alongside
the li controls. With the li at alignment height, unlock the slip plates by depressing PS buon. "Unlock" indicator will
glow as shown above. Depress PS buon again to lock the slip plates. For L45x lis with FAI console units (-IS models),
operate PowerSlide as follows: With the li at alignment height, press the image of the free slip plate or the locked slip
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