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HEAVY DUTY STAIR LIFT: SECTION 4INSTALLATION3. Use the installation switch (the black switch onthe top of the chassis) to move the chassis atleast two feet down the rail, pushing gently onthe chassis to ensure the chassis does not pullany rack to the top. See Figure 4-9.Figure 4-113. Slide the top limit cam into one of the cam slots(either side), and tighten the pre-inserted Allenscrew with a 5/64 Allen wrench. This will beused to set the final upper limits for the stair lift.See Figure 4-12.Figure 4-9!CAUTIONDo not ride on the chassis or lift until the installis complete.FINAL RAIL INSTALLATION1. Install the remaining plastic rack pieces in theupper rail. See Figure 4-10.Figure 4-102. Use a hacksaw or chop saw to cut the lastplastic rack piece flush with the rail end. Placesomething on the floor to catch debris or markand cut the rack outside.The exposed, cut end of the plastic rack shouldface the top end of the rail (the factory-cut sideshould butt against the lower rack).See Figure 4-11.Figure 4-124. Remove the charging strip from the rail box.Connect charging strip connector to the chargerwire that runs through the center of the rail fromthe lower charging strips.Insert the two charger strips into the keyed slotsat the top of the rail (while standing on the toplanding looking down). The charging strip withthe red wire should be inserted into the left slotwith the metal strip facing out. The chargingstrip with the black wire should be inserted intothe right slot with the metal strip pointing out.Bend the red and black wire tabs in toward thecenter of the rack.Insert excess cable into the rail, leaving thepigtail with the Molex connector.5. Install the end plate to the top of the rack withthe four self-cutting Torx screws using thesupplied T30 Torx bit. See Figure 4-13.SL600HD Heavy Duty Stair Lift: Installation & Service Manual31JAN2020 P/N: 75403 REV C11

HEAVY DUTY STAIR LIFT: SECTION 4INSTALLATIONFOOTREST & SEATINSTALLATIONFigure 4-13!CAUTION1. Remove footrest from box and use theinstallation switch to drive the chassisdownward to a position about 6" clear of thefloor. This provides a safe area to install andadjust the footrest. Do not drive the unit intothe bottom stop. See Figure 4-15.Too much torque applied to these screws mayresult in damage. Take your time and applygrease to threads.6. Install one of the rack pre-compression screwsin the threaded hole in the top rail plate; tightenas firmly as possibly by hand with a 5/32" Allenwrench. See Figure 4-14.There are three kinds of pre-compressionscrews: 1" for tracks under 6' 1 1/4" for tracks between 6' and overFigure 4-152. Turn the red “On/Off” switch located on the topof the chassis to the “OFF” position.3. Position the footrest onto the two seat-levelingbolts on the outside of the chassis by aligningthe large opening at the slot ends of the footrestSee Figure 4-16.Figure 4-147. Plug in the battery charger at either end of therail, choosing the closest or most convenientlocation of a wall power supply. Minimize wirelength and intrusion.12Figure 4-164. Ensure the footrest if fully engaged.5. Position the rear seat support onto the two seatleveling bolts on the backside of the chassis byaligning the large opening at the slot ends of thefootrest. See Figure 4-17.SL600HD Heavy Duty Stair Lift: Installation & Service Manual31JAN2020 P/N: 75403 REV C

HEAVY DUTY STAIR LIFT: SECTION 4INSTALLATION6. Connect the footrest cable to the 6-pinconnector on the chassis. See Figure 4-21.Figure 4-17Secure the rear seat support to the footrest/seat support using the two hex-head bolts andwashers. See Figure 4-18.Figure 4-21NOTE: When the 6-pin footrest and the 8-pin chair cablesare both connected to the chassis, the black installationswitch on the chassis is disabled and will not function.7. Align the seat rollers with the slider rails andslide the seat half way back. See Figure 4-22.Figure 4-18Secure the rear of the slider rails to the rearsupport using the two socket bolts.See Figure 4-19.Figure 4-228. Swivel seat approximately 45 to one side.See Figure 4-23.Figure 4-19Ensure that the seat support is level and tightenthe two front and two rear leveling bolts.See Figure 4-20.Figure 4-239. Attach the swivel pin bracket with the flat sidetowards the footrest support using the two hexhead bolts and washers. Ensure that one of theswivel pins is engaged into the slot in the swivelcam. See Figure 4-24.Figure 4-20SL600HD Heavy Duty Stair Lift: Installation & Service Manual31JAN2020 P/N: 75403 REV C13

HEAVY DUTY STAIR LIFT: SECTION 4INSTALLATIONnot green after testing sensors, turn the unitoff and re-check all wire plugs. Turn the unit onagain and re-check the LED indicator light cycle.When the LED indicator light remains green, thelift is ready to operate. See Figure 4-27.Figure 4-2410. Connect the seat cable to the 8-pin connectoron the chassis. See Figure 4-25.Seat swivel sensorSeat should be in thelocked positionFootrest lower sensorCheck by pushing in onthe safety pan on thefootrestUpper foot pan safetysensorCheck by pushing onthe safety pan on thefootrestFront foot pan safetysensorCheck by pushing onthe safety pan on thefootrestUphill safety sensorEnsure nothing isblocking upwardpassageDownhill safety sensorEnsure nothing isblocking downwardpassageFigure 4-2511. If the lift is equipped with the optional keylock, ensure that the key switch on the armrestcontrol is in the locked position; the key shouldbe in the vertical position. See Figure 4-26.Figure 4-27REMOTE CONTROLPROGRAMMINGFigure 4-2612. Turn the red “ON/OFF” switch located on thetop of the chassis to the “ON” position. Youshould hear a single beep and the LED indicatorlight on the armrest control should cycle througha test sequence, showing red, yellow and greenrespectively. If any of the system controls orsafety sensors are engaged the LED indicatorlight will turn to yellow.13. If the LED indicator light is not green, check thesafety sensors. If the LED indicator light is still14All call/send controls are factory programmed.Re-programming is not normally necessary duringinstallation. In the event that the remove call/sendcontrol needs to be re-programmed, it is essential toprogram BOTH controls in one programming cycle.Do so by completing the following.1. Start with the red “ON/OFF” switch in the “Off”position.2. Disconnect the 6-pin footrest and 8-pin chairwire harness from the chassis.3. Press and hold the install switch (located on theSL600HD Heavy Duty Stair Lift: Installation & Service Manual31JAN2020 P/N: 75403 REV C

HEAVY DUTY STAIR LIFT: SECTION 4INSTALLATIONtop of the chassis) in either direction.4. Turn the red “ON/OFF” switch to the “ON”position, and then release the install switch.5. The lift will begin to beep rapidly (this means thefirst remove control is ready to program).6. Press and release the “UP” or “DOWN” button ofthe first remote control (the first remote controlis now programmed).7. Press and release the “UP” or “DOWN” button ofthe second remote control (the second remotecontrol is now programmed).8. Upon completion, two beeps will indicate thatboth remote controls have been programmed.9. Turn the “ON/OFF” switch to the “OFF”position.10. Connect the 6-pin footrest and 8-pin chair wireharness to the chassis and then turn the red“ON/OFF” switch to the “ON” position.11. Test each remote control in both the up anddown directions.FINAL TESTINGTest Armrest Control Switch1. Ensure that the unit travels correctly byoperating the armrest control switch whilestanding in front of the unit.2. Depress the switch in the upstairs direction tomove up. The lift will beep, wait three secondsand begin to smoothly accelerate upwards. Thelift will continue to move upwards as long as theswitch is depressed.3. Release the switch and the lift will come to animmediate stop.4. Depress the switch in the downstairs directionto move down. The lift will beep, wait threeseconds and begin to move downwards.5. Release the switch and the lift will come to animmediate stop.6. Run the chair all the way up and down the railto ensure that the top of the seat back hasat least a 1/2" clearance from the wall and anyobstructions.Tighten Brackets1. Install and fully tighten the rail bracket mountingscrews (four screws per bracket). For hardwoodstairs, drill a pilot hole first. For plywood orparticle board stairs, take care to preventstripping.Set Upper and LowerTravel Limits1. Test the lower travel limit by operating the liftdownward, keeping the switch depressed. Theunit should begin to decelerate about 3" from itsfinal resting position and stop clear of the floor.2. The final stopped position can be adjustedto accommodate the height of the user byrepositioning the limit cam located in a slot inthe rail.3. Use a 5/64" Allen wrench to loosen the set screwin the limit cam. Adjust the limit cam up or downand retighten the set screws. Repeat the abovesteps until the lift stops in the desired position.4. Repeat the above steps to set the upper limits.For safety, the footrest should be set at leastlevel with the upper landing.5. The optimum position is met when the seatheight above the floor is the same at the top andbottom of the stairs.Test Safety Stop Switches1. Safety stop switches are located in both theupward and downward ends of the chassisSL600HD Heavy Duty Stair Lift: Installation & Service Manual31JAN2020 P/N: 75403 REV C15

HEAVY DUTY STAIR LIFT: SECTION 4INSTALLATIONproviding protection from obstructions on therail.2. Safety stop switches are located in thefootrest bottom pan providing protection fromobstructions and trapping hazards on the stairs.3. A safety stop switch is part of the swivel seatmechanism and prevents the lift from operatingwhen the swivel is in use.4. Test all the safety stop switches by driving thelift down and touching the downward end of thechassis, the lower edge of the footrest, and theunderside of the footrest in both its folded andunfolded positions.5. In each of the above cases the unit should cometo an immediate halt. The LED indicator light onthe armrest control should turn to orange andthe unit should beep intermittently.6. When the control switch is released, the unitshould NOT be able to be driven in the directionthat the lift initially engaged the obstacle. Testthis condition.7. Test to ensure that the lift can only be drivenaway from the obstruction. The LED indicatorlight will turn to green and stop beepingindicating a safe operating condition.8. Repeat the above tests while driving the lift inopposite direction.9. If any safety condition does not functionproperly, carefully review all installationinstructions, reset the “ON/OFF” switch andcheck that the LED indicator light is green.Repeat the above tests.10. If any safety stop switch fails to immediatelystop the lift and/or a red LED indicator lightappears, remove the key to prevent further useof the lift and immediately call the manufacturerfor assistance in diagnosing and repairing theproblem. DO NOT USE THE LIFT.16Additional System Checks1. After the successful testing of all safetyswitches, secure the seat belt, sit on the lift andoperate to the top of the stairs. Keeping thecontrol switch depressed continuously, the liftshould gently decelerate and then stop at thetop of the track.2. As a final adjustment, sit on the lift and do twocomplete up trips and stop with the chair at thebottom. Then tighten the compression screw inthe top end plate, then run the chair to the topand again tighten the compression screw. Runthe chair to the middle and do a final tighteningof the compression screw.3. Drive the lift to the bottom, keeping the controlswitch depressed all the time, and check that thelift gently decelerate and stops so the footrestpan is clear off the floor. If necessary adjust thelimit cams with a 5/64" Allen wrench.4. Move the lift about three (3) feet from either thetop or bottom of the rail. After 30 seconds thearmrest LED indicator light will show orangeand beep indicating that the lift is not positionedon a charge point. The beep will stop after 30seconds, but the armrest LED indicator light willcontinue to flash orange.5. Test the seat swivel at the top by using thelevers and swiveling the seat towards thelanding and stop the seat at 35 and 85 degrees.The seat swivel levers will release into a lockedposition at each of these angles. The lift will notoperate in any of these positions if the controlswitch is depressed, and the LED indicator lightwill turn orange. Return the seat to its normalposition and the LED indicator light will turngreen and the lift will now operate normally.6. Drive to the top or bottom and check the batterycharging light. If the light is orange or red, thebatteries are being charged.SL600HD Heavy Duty Stair Lift: Installation & Service Manual31JAN2020 P/N: 75403 REV C

NOTESSL600HD Heavy Duty Stair Lift: Installation & Service Manual31JAN2020 P/N: 75403 REV C17

NOTES18SL600HD Heavy Duty Stair Lift: Installation & Service Manual31JAN2020 P/N: 75403 REV C

NOTESSL600HD Heavy Duty Stair Lift: Installation & Service Manual31JAN2020 P/N: 75403 REV C19

2075 47th Street Sarasota, FL 34234800.833.0478harmar.com

SL600 HD Stair Lift is to assist the transfer of patients or mobility impaired persons, up and down levels of a residence. READ AND UNDERSTAND This manual provides instructions for proper use and maintenance of your Pinnacle SL600 HD Stair Lift. Please refer to this Owner's Manual for operating instructions. Any alterations to the equipment