Hunter L494HD User manual

Heavy duty rack lift L494HD (35,000
lb capacity) - Operations Manual
RM07815-00

Table of Contents
1. FOR YOUR SAFETY .................................................................................................................................... 3
1.1. Decal Placement Overview ................................................................................................................. 3
1.2. Jack Warning/ Instruction Decal Placement .......................................................................................... 6
1.3. Additional Safety Information .............................................................................................................. 6
2. Specifications ............................................................................................................................................... 7
3. Getting Started ............................................................................................................................................. 8
3.1. Operator Responsibilities .................................................................................................................... 8
3.2. Operator Qualifications ....................................................................................................................... 8
3.3. Operator Training ............................................................................................................................... 8
4. Detailed Operation Instructions ...................................................................................................................... 9
4.1. Preparation ........................................................................................................................................ 9
4.2. Chocking Procedure ........................................................................................................................... 9
4.3. Lift Operation ................................................................................................................................... 10
5. Regular Maintenance .................................................................................................................................. 13
5.1. Corrosion ......................................................................................................................................... 13
5.2. Maintenance Schedule ..................................................................................................................... 13
5.3. Warranty Information ........................................................................................................................ 16
6. Troubleshooting .......................................................................................................................................... 17
Heavy duty rack lift L494HD (35,000 lb capacity) - Operations Manual
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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.
Table 1. Decal List
Decal Description Qty. Application Notes
-- HANDS OFF 4 Circle with hands crossed out For underneath, mechanism of
PowerSlide runways
1.1. Decal Placement Overview
Care Instructions
Figure 1. WA90-17
PIN/LOCK TURNPLATES
Figure 2. 128-571-2
Keep Feet Clear
Figure 3. 128-304-2 (Runways and
Crossmembers)
Read Operation Manual
Figure 4. 128-180-2
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Care Instructions - Rack Finish
Figure 5. 128-567-2
L494HD Weight Capacity
Figure 6. 128-1835-2 One sticker per Runway
Do Not Exceed
Figure 7. 128-938-2
Caution - Risk of Electric Shock
Figure 8. 128-158-2 (on top of console)
CAUTION: RAISE/LOWER
Figure 9. 128-1552-2
DANGER: Lockout Power
Figure 10. 128-1358-3
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Hands Caution: PowerSlide Runways
Figure 11. 128-202-2
WARNING: DO NOT EXCEED
Figure 12. 128-320-2
WARNING: REMAIN CLEAR
Figure 13. 128-321-1
CAUTION: Do Not Operate
Figure 14. 128-311-2
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CAUTION: Proper Maintenance
Figure 15. 128-312-2
Wire Rope Service Record
Figure 16. 128-1013
1.1.1. Safety Instructions
Figure 17. 128-308-2
1.2. Jack Warning/ Instruction Decal Placement
1.3. 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.
Heavy duty rack lift L494HD (35,000 lb capacity) - Operations Manual
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2. Specifications
Table 2. Lift Capabilities
Specications L494HD
Maximum Load Capacity 35,000 lbs (15874 kg)
Maximum Liing Height 69.88 in. (1775 mm)
Alignment Height Any of 7 lock posions
Overall Height 98 in. (2489 mm)
Power Unit 139-64-2
Liing Speed 82 seconds (1/2 capacity max height)
Lowering Speed 70 seconds (1/2 capacity max height)
Motor 3 hp, 208-230 VAC, 60hz, 1ph
Pressure Relieve Valve Contact Hunter
Valve Stamped ID Contact Hunter
By-pass Pressure
Tread Width: Min inside
Max outside
44 in. (1016 mm)
104 in. (2337 mm)
Max. wheelbase
General Service:
Two-wheel alignment
Four-wheel alignment
320 in. (8128 mm)
300 in. (7620 mm)
158 in. (4013 mm)
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3. Getting Started
3.1. Operator Responsibilities
NOTE
Read and thoroughly familiarize yourself with these instrucons and the ANSI/ALI ALOIM-2000 prior to
operang the equipment.
The operator shall operate the automove li only aer proper instrucon or trained as outlined below (see Operator
Training).
The operator shall use all applicable safety features provided on the automove li, and operate the li in accordance with
the instrucons furnished with the li.
The operator of the li shall be responsible for maintaining the cleanliness and orderliness of the li and its surroundings so
the li may be safely operated in accordance with the instruconal and safety materials furnished with the li.
The li owner or employer shall take all appropriate steps to follow the recommended inspecon procedures, but in no
event shall the li operator fail to inspect or take noce of the procedures in the tables in Secon 5. All procedures shall be
completed within the me frame noted in the table.
Don'ts:
• Do not place hands or head over jack if cylinders are pressurized.
• Do not operate jack if damaged or not operang correctly. See chapter ve (5) for inspecon points.
• Do not raise or lower li with the vehicle supported on jacks.
Do’s:
• Always set jack on the ratchets aer raising the vehicle.
• Always ensure that the vehicle is safely supported on li pads before raising the vehicle.
• Always raise jack o LOCKS before aempng to release locks.
3.2. Operator Qualifications
To avoid personal injury, only qualied personnel with a clear understanding of li operaons should be allowed to operate
and perform maintenance on this equipment.
The operator must be capable of reading and understanding all of the provided instrucons and the Automove Li
Instute publicaon, “Liing It Right,” “Safety Tips,” and “Warning Labels.”
If inspecon of the equipment results in components requiring replacement, contact your factory Authorized Service
Representative. Call 1-800-448-6848 for the phone number of your local Authorized Service Representative.
3.3. Operator Training
The owner or employer shall ensure that operators of automove lis are instructed in the safe use of the li using all
of the provided instrucons and the Automove Li Instute publicaon: “Liing It Right,” “Safety Tips,” and “Warning
Labels.”
The owner or employer shall display these materials in a conspicuous locaon in the li area. The owner or employer
shall appropriately document operang training. A Maintenance/Training documentaon form has been provided in the
Appendix.
Heavy duty rack lift L494HD (35,000 lb capacity) - Operations Manual
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4. Detailed Operation Instructions
4.1. Preparation
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
4.2. Chocking 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.
1. Drive the vehicle onto the rack, place the transmission in PARK, and SET the emergency brake
2. Place a wheel chock, 22-525-2, at the front and rear of the le rear wheel.
Heavy duty rack lift L494HD (35,000 lb capacity) - Operations Manual
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3. Leave the wheel chocks in place while elevang the li, performing service operaons on the vehicle, and while
lowering the li.
4. Aer lowering the li, remove the wheel chocks from the front and rear of the re before moving the vehicle.
4.3. Lift Operation
Raising the Lift. 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.
Verify “POWER” light is illuminated, indicang electrical power is supplied to console and the power switch located on the
side of the console is in the “ON” posion.
Depress and hold the “RAISE” buon. The pump will begin to operate, raising the li.
Heavy duty rack lift L494HD (35,000 lb capacity) - Operations Manual
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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.
Release the “RAISE” buon when the li reaches the desired height. The pump will shut o and the li will stop
Press and hold the “LOWER” buon unl the li stops lowering and mechanical locks engage.
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.
DO NOT OPERATE LIFT W JACKS IN USE
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.
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.
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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.
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).
Heavy duty rack lift L494HD (35,000 lb capacity) - Operations Manual
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5. Regular Maintenance
With due care and maintenance, your Hunter alignment li can last indenitely. Please use the following maintenance
schedule to keep your Hunter alignment li in good working order.
5.1. Corrosion
NOTE
Scratches to powder-coat should be touched up as soon as possible, on an as-needed basis. Use provided
paint.
CAUTION
Wire ropes are a high wear item and must be inspected regularly to prevent failure. They MUST be replaced at
the rst sign of any symptoms listed below. The complete set MUST be replaced every 20,000 cycles or every
six years unless earlier replacement is indicated by the required service inspecons (see the maintenance
schedule following).
The best prevenve maintenance against wire rope corrosion is to keep the wire ropes well lubricated. The oil prevents
moisture from entering into the wire rope strands. Once salt and moisture have penetrated into the core of the wire rope
they are very dicult to displace and corrosion will begin immediately. The best method to prevent early replacement of
wire ropes is to keep them well oiled.
The following are specic signs to look for when inspecng wire ropes for corrosion:
• More than surface rust on exterior of the wire rope is unacceptable. In other words, if you can’t remove the rust easily
with a wire brush, it’s too deep and the wire rope should be replaced
• Any ping of the wire rope indicates unacceptable amounts of corrosion. The wire rope should be replaced.
• Loss of exibility of the wire rope is unacceptable. This can be checked with the li raised and set on the locks. If found,
the wire rope should be replaced.
• If any wires are broken, the wire rope should be replaced.
• Any “necking” or reducon in cross seconal area of the wire rope indicates a problem and the wire rope should be
replaced.
NOTE
If an area of the wire rope has no lubricant on its surface, the wire rope is rust bound and should be replaced.
Once the wire rope has lost oil protecon, moisture has already entered the core and is nearly impossible to
remove.
5.2. Maintenance Schedule
NOTE
For lockout / tagout instrucons, refer to ANSI Z244.1.
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Maintenance is to be performed by shop employee or trained li service personnel.
Worn, damaged or broken parts need replaced with parts approved by the original equipment manufacturer or with parts
meeng original manufacturer specicaons.
MAINTE-
NANCE
SCHEDULE
PERFORM THE FOLLOWING MAINTENANCE
Weekly Check the turning angle gauges and rear slip plates for smooth and easy operaon. Clean by
blowing out with clean, dry compressed air. Disassembly is not required. DO NOT lubricate turn-
ing angle plates or slip plates. (CAUTION: Always wear eye protecon when using compressed
air). Check anchor bolts on each post for ghtness. Torque to 100-110 -lb. Check and lubricate
rear ramp pivots with SAE 30 oil.
Monthly Check wire ropes for damage and lubricate with a thin oil (SAE 5W-30). Note: Do not use used
motor oils. They contain contaminants that will break down factory applied lubricants. Also, do
not use oils containing a solvent base (solvent cutback oils). They also will break down factory
applied lubricants. Replace wire ropes immediately if any sign of wire rope damage is found.
Inspect enre li for loose, damaged, or broken bolts. Replace as necessary. Blow dirt from
insides of slide plates with compressed air (do not grease). Swing Air/Power Jacks: Clean swing air
jacks thoroughly with a degreasing solvent and dry. Wipe cylinder tubes with oil. Apply SAE 30 oil
to rollers and pivot pins.
Check proper operaon of control levers.
Check for air leak. Check that the locks are fully engaging and unlocking at the correct mes.
Perform general structural check for damage.
Check columns and runways for corrosion. Corrosive agents, solvents, and road salts can greatly
reduce the life of the li in a very short period of me. If these types of agents are spilled or
splashed onto the li, immediately rinse area thoroughly with water. If they come in contact with
the wire ropes, wash the wire ropes immediately with water and re-lubricate with low viscosity
oil.
Check the power unit reservoir oil level. Add oil if necessary (use Hunter’s specially ltered
DEXRON III transmission uid, 148-128-2). NOTE: Oil must be checked and lled when the lift is
in its fully lowered position. Remove air breather cap and oil full level screw located at the top of
the reservoir. Fill reservoir with oil unl the oil begins to drip from full level screw hole. Replace
air breather cap and oil full level screw. If the oil level is found to be low, determine the source of
the oil loss and repair immediately.
Apply SAE 30 oil to all pivot pins, ramp pins, wheel stop pins and leg shas. Wipe hoist cylinder
with oily cloth and lubricate gear rack.
Notes about corrosion: The best prevenve maintenance against wire rope corrosion is to keep
the wire ropes well lubricated. The oil prevents moisture from entering into the wire rope strands.
Once salt and moisture have penetrated into the core of the wire rope it is very dicult to
displace and corrosion will begin immediately. Remove top slip plate. Clean thoroughly with a
degreasing solvent and dry. Coat unpainted surfaces,where balls roll, with paran. Replace any
broken balls. Replace top plate.
Every 6 Months Check runways and re−level as required.
Annually The enre li should be inspected yearly (more frequently for severe use applicaons) by your
factory authorized service representave.
Heavy duty rack lift L494HD (35,000 lb capacity) - Operations Manual
Page 14 of 17

MAINTE-
NANCE
SCHEDULE
PERFORM THE FOLLOWING MAINTENANCE
Every 2 Years Change hydraulic uid. Use 4 gallons (15 liters) of Hunter’s specially ltered DEXRON III transmis-
sion uid, 148-128-2. NOTE: Oil must be lled when the lift is in its fully lowered position.
Drain uid from reservoir by dropping pump reservoir with the li lowered completely.
Clean any metal parcles that may be on the magnet
Every 6 Years Hunter Engineering requires that the liing cables on all 4-Post models be replaced every six
years.
Hunter Service representaves are authorized to perform this service
NOTE
The suggested maintenance above is for normal working condions. Equipment exposed to unusually dirty or
harsh corrosive condions such as heavy winter road salt may require more frequent maintenance and service.
If any of the condions described above are observed before, during, or aer operaon of the li, the operator shall stop
using the li and report the condion to the supervisor, employer or owner. The li shall not be used unl the cause of the
problem has been determined and the appropriate repairs have been made by qualied automove li personnel.
Heavy duty rack lift L494HD (35,000 lb capacity) - Operations Manual
Page 15 of 17

5.3. Warranty Information
Hunter Engineering Company warrants new equipment to be free from defects in material and workmanship under normal
condions of use for a period of three (3) years from the date of installaon. Excepons to this warranty are listed below:
• Field labor is covered under this warranty for a period of six (6) months.
• ADASLinkTM units carry a one (1) year warranty and remain under warranty as long as a subscripon is maintained there
aer.
• DAS 3000 units, including electronic circuit boards, carry a one (1) year warranty.
• Printers carry a one (1) year warranty.
• Normal consumables and wear items are not covered. Excepon is baeries, which are warranted for a period of six (6)
months.
• Product that has been subject to abuse, misuse, alteraons, accident, exposure to the elements,tampering, unreasonable
use, or not maintained in a reasonable or necessary manner.
• Replacement parts purchased through the Hunter Service Center and no longer covered by machine warranty are
warranted for a period of six (6) months.
In case of any warranty claim, it will be necessary to contact your local authorized Hunter Service Representave. To have
an item considered for warranty, it must be returned to Hunter Engineering Company for inspecon and evaluaon. This
must be done on a freight prepaid basis. If aer our inspecon the product proves to be defecve, and is within the me
frame specied, we will repair or replace the item at no addional cost.
This is Hunter Engineering Company’s only warranty with respect to new equipment. Hunter Engineering Company
disclaims all other warranes to the extent permied by law. This express warranty and any implied warranes of
merchantability and tness for a parcular purpose shall not extend beyond the warranty period. Hunter Engineering
Company is not responsible for any incidental or consequenal damages, including, but not limited to, loss of business.
We do not authorize any person to assume for us any other liabilies with our products. Any remaining warranty may be
transferred to subsequent purchasers by forwarding the purchaser’s name, address,phone number and equipment serial
number to:
See our document library at www.Hunter.com for addional details.
Hunter Engineering Company | Customer Service Department
11250 Hunter Drive, Bridgeton, MO 63044
[phone]
Form 3221-T, Updated: 06-2021, Supersedes 12-17a
Heavy duty rack lift L494HD (35,000 lb capacity) - Operations Manual
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6. Troubleshooting
Table 3. Troubleshooting Chart
PROBLEM POSSIBLE CAUSE SOLUTION
Li does not operate. Circuit breaker or fuse blown in shop
power panel.
Hydraulic system malfuncon.
Locate shop power panel and restore pow-
er. If overload repeats due to li operaon,
contact factory service representave.
“RAISE” buon de-
pressed, motor runs but
li will not rise to full
height
Low hydraulic uid reservoir.
Overhead obstrucon to vehicle.
Voltage supply low
Hydraulic system malfuncon.
Lower li, check hydraulic uid level, and ll.
Determine reason for low hydraulic uid lev-
el.
Lower li and remove obstrucon.
Contact factory service representave.
“RAISE” buon de-
pressed, motor runs, li
does not move.
Vehicle is beyond capacity.
Electrical/Hydraulic controls malfunc-
on.
Electrical control malfuncon.
Do not aempt to raise vehicles in excess of
li capacies. Electrical/Hydraulic controls
malfuncon.
Contact factory service representave.
Runways connue to rise
aer “Raise” buon is re-
leased.
Electrical control malfuncon. Turn circuit breaker “O” at shop power
panel.
Contact factory service representave.
Locks do not retract One or more locks sll engaged on the
lock ladder.
Air control malfuncon. Leak in air cir-
cuit.
Raise li more before pressing “LOCKS RE-
TRACT” switch
Check air supply and hoses. Check air circuit
and repair any leaks.
Contact factory service representave.
“Lower sequence started;
li raises but then does
not lower.
One or more locks sll engaged on the
lock ladder.
Air control malfuncon. Velocity fuse
tripped.
Electrical/Hydraulic controls malfunc-
on.
One or more locks sll engaged on the lock
ladder.
Check air supply and hoses.
Contact factory service representave.
Li connues to descend
aer “LOWER” buon is
released.
“LOWER” buon is stuck or 2- way
valve (“LOWER” solenoid valve) is
stuck open
Contact factory service representave.
Heavy duty rack lift L494HD (35,000 lb capacity) - Operations Manual
Page 17 of 17

Visit hunter.com/training for more information
Hunter Training
Develop the skills and Knowledge to excel
hunter.com/training
Hunter Engineering Company leads
the under-vehicle service equipment
industry & accepts the responsibility
to train tomorrow’s technicians.
Based on Hunter’s know-how and
industry-leading technology, Hunter
Training begins with concept theory
and discussion (40%) and nishes
with hands-on training (60%).
All Hunter Training classes are led
by ASE-certied instructors and all
training material is kept up-to-date
through a rigorous curriculum review
process.