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Harmar Pinnacle SL600HD Heavy Duty Stair Lift

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Note: We would require Vehicle Information (Year, Make and Model) and Chair/Scooter information (Make and Model) to process your order. You can email us the information by clicking Here or you can use the Order Comments section while placing the order for this product.

Harmar Calculator: To learn which Harmar lifts are suitable with your vehicle and mobility device? Our Compatibility Calculator can help.

Harmar Pinnacle SL600HD Heavy Duty Stair Lift is engineered to the highest industry standards and designed for optimal comfort, convenience, and aesthetics. Its High-backed, contoured 25 Inch wide seat ensures a comfortable and secure ride. Pinnacle Heavy Duty Stair Lift comes with sturdy, stationary armrests and reinforced footrest add stability for safer transfers. Ease of access with an 85ð swivel slides out from the wall as it pivots at the top landing.


Total: $6,895.00

Earn $206.85 in HPFY rewards

For Assistance 877-278-6039

Harmar Pinnacle Heavy Duty Stair Lift Highlights

  • Low Maintenance
  • Compact
  • Helical Worm Gear for smooth ride
  • Nylon Polymer Gear Rack for a greater stability
  • Folding Rail Design
  • Efficient motor for extended performance during power loss

Harmar Pinnacle Heavy Duty Stair Lift Features

  • Industry-best 600 lbs capacity
  • Seat swivels 85° at both the upper and lower landing for easy dismount or transfer
  • Up to 40' of travel
  • Patented helical worm gear drive system for extremely smooth and quiet ride
  • Low Maintenance
  • Operating control in the armrest
  • Comfortable, plush upholstered seat
  • Safety sensors in the footrest and chassis will stop the lift if it meets an onstruction
  • Options/Accessories: Key lock to protect against unauthorized use

How To Determine Pinnacle Heavy Duty Stair Lift Rail Length?

  1. Determine obstructions that will affect the position and length of the rail, such as walls, doors, hallway orientation, etc.
  2. Measure the overall length of the stairs from the nose at the top landing to the floor (nose to floor measurement), e.g., 128".
  3. For a normal stairway with adequate landing space, add 7" to the nose to floor measurement. This will provide enough rail length to allow the stair lift to be adjusted so that the floor-to-seat height will be the same at both the top and bottom.
  4. If the top landing has restrictions (i.e., a wall or doorway), use the chart below to determine the length of extension needed.
  5. To cut the rail, use a standard 12" chop saw, with a blade designed to cut aluminum.

Remote Control Operation
The key switch on the arm of the chair must be in the position to use the remote call/send control.

  1. Press and hold the appropriate directional button on the front of the hand control. The LED indicator light will turn green when a signal is being sent.
    - The chair lift will operate with or without a rider. All safety sensors on the chair lift are designed to continue to operate in their normal mode. The LED light indicator on the armrest will also display the appropriate color.
  2. If the chair lift fails to respond, this may indicate the batteries are discharged and need to be replaced. Remove the back cover of the control and replace with commonly-available AAA batteries, ensuring that the polarity is correct.

Stair Lift Operation

  1. When positioning yourself on the seat at the upper landing, ensure the seat is fully swiveled and locked in position for safety. The seat may be swiveled by depressing the swivel release handle on either side of the seat.
  2. To turn the stair lift on, press the red switch located on the top of the carriage to the position (I) and ensure that the key switch (if equipped). When the lift is turned a green light on the armrest will indicate that the lift is ready for use.
  3. Ensure that you are securely seated before operating the lift. To operate the lift, continuously press the hand control switch on the side in which you wish to travel.
  4. If you release the control switch the lift will stop. Continue to press the switch or button all the way to the landing. The lift will gently stop at the appropriate, preset point.
  5. To safely exit the lift, support yourself by the armrests, rise and step off the footrest. At the upper landing, ensure that the seat is fully swiveled and locked before rising. If you do not intend to use the lift again immediately the seat and footrests may be folded up to minimize obstruction to people walking on the stairs.
  6. To operate the lift remotely, continuously press the appropriate up or down button on the call/send hand control unit. These hand control units are usually attached to a wall at the upper and lower landings of the staircase. Like all infrared devices, the signal may be interrupted if the hand control unit is not in the line of site of the stair lift. If this happens the lift may temporarily stop but restart immediately, as long as the hand remote is pressed continuously.

Safety Features

  • There are sensitive edges on the top and bottom of the carriage, and the front, back and underside of the footrest. If any of these edges touches an obstruction the lift will halt immediately and the armrest LED indicator light will turn orange. The lift may only be driven away from the obstruction.
  • An interlock on the swivel seat prevents the lift from being operated unless the seat is in its normal, locked position.
  • The safety brake is always engaged.

Battery Charger
The stair lift should be kept fully charged at all times. When the lift stops at an upper or lower landing it will charge automatically. The charger should be left plugged in at all times and the lift may be left on charge indefinitely, as the charger is intuitive and will not overcharge.

Care And Cleaning
The lift should require no technical maintenance to continue to operate at full capability. There is no grease or other lubricants used in the drive system, and no adjustments should be required. However, the lift should be inspected annually. The lift and rail should be kept clean. Dust can build up on surfaces, and soiling may occur. The upholstery and carriage can be cleaned with a damp, soapy cloth followed by a clean, damp cloth. Do not use abrasive cleansers as these can damage the finish. If heavy soiling occurs, clean by scrubbing lightly with a soft brush.


Specifications Values
Maximum weight capacity 600 lbs.
Motor output amps at rated load 16 amps
Overspeed governor Yes
Track (rail) type Clear anodized aluminum
Travel 16¾ standard; 40¾ maximum
Average number of return trips per charge 10 - 20
Symmetrical lift Yes
Control in armrest Yes
Need to open chassis to install or change sides No
Lift mounts to steps or wall Steps
Minimum folded width 17"
Minimum footrest height 3.6"
Clear distance between armrests 25"
Floor to seat height low/high 22"
Minimum wall to stair side of the rail 12"
Seat depth 16"
Backrest height from top of the seat 18"
Electrical requirements 120VAC 15A
Operation power 24V DC battery
Speed 14 fpm
Incline range 27" - 45"
Drive system Helical-worm drive


  • 3-Year on parts
  • 10-Year on gear
  • 1-Year on battery

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