Merits Pilot - Rollers Replacement; Limit Switches Replacement; Figure 4-38 Carriage Rollers; Figure 4-39 Carriage Limit Switches

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4-21

4.6.1. Rollers Replacement

i. Remove C-rings and rollers from the shafts.

ii. Clean the shafts and apply lubricant on the shafts and inner bores of new

rollers.

iii. Install new rollers and shafts on the carriage.

Figure 4-38 Carriage rollers

4.6.2. Limit Switches Replacement

i. Loosen the screws and disconnect the cable to remove the limit switch.

ii. Install the new limit switch.

Figure 4-39 Carriage limit switches

Main Page

Table of Contents2
Introduction8
Intended Use8
How to Use Installation and Service Manual8
Safety Rules8
Warranty9
Table 1-1 Specification of Stairlift10
Installation11
Unpack and Verify the Shipment11
Figure 2-1 Unpacking Carriage, Seat, and Rails11
Figure 2-2 Unpacking Seat Post/Footrest and Accessories12
Determine Handing13
Cut the Rail to Length as Required13
Figure 2-3 the Rail Is Installed on the Right Side of Stairs for the Right-Hand Unit13
Figure 2-4 the Top and Bottom Side of the Rail13
Stairs Measurement14
Determine the Rail Length14
Figure 2-5 Stair Measurement14
Connect Rail Sections Together (if Required)15
Figure 2-6 Connect Rail Sections Together15
Table 2-1 Top Rail Extension Length15
Install Bottom Rail Accessories16
Install Rail Assembly on Stairs16
Figure 2-7 Install Charging Bases and Limit Switch Cam16
Install Racks on Rail Assembly17
Figure 2-8 Rail Bottom Distance to the Floor17
Figure 2-9 Install Mounting Brackets17
Install Carriage on Rail18
Slide Carriage Onto Rail18
Figure 2-10 Mesh the Rack Sections18
Figure 2-11 Carriage Gripping Area19
Figure 2-12 Carriage Installing Direction19
Engage Carriage Gear with Rack on Rail20
Move Carriage down by Remote Controller20
Figure 2-13 Drive Carriage down by Hand Crank20
Figure 2-14 Plug Short Links on Carriage20
Install Accessories on Top Rail Section21
Adjust Location of Top and Bottom Limit Switch Cams21
Figure 2-15 Install Accessories on Top Rail Section21
Figure 2-16 Location of Limit Switch Cams21
Install Footrest Assembly22
Check Handing of Footrest22
Switch Handing of Footrest (if Required)22
Figure 2-17 Footrest Handing22
Figure 2-18 Switch Footrest Handing22
Assemble Footrest23
Figure 2-19 Central Spacer Plate23
Figure 2-20 Footrest Installation23
Plug in Connector to Carriage Footrest Cable24
Install Seat Assembly24
Check Handing of Seat24
Figure 2-21 Footrest Connector24
Figure 2-22 Seat Handing24
Change Handing of Armrest (if Required)25
Figure 2-23 Rocker Switch Wiring for Different Handing25
Figure 2-24 Armrest Bottom Cover Screws25
Adjust Armrest Width (if Required)26
Figure 2-25Armrest Safety Switch and Plugs26
Figure 2-26Armrest Width Adjustment26
Adjust Seat Height (if Required)27
Plug in Seat Control Cable27
Figure 2-27 Seat Height Adjustment27
Figure 2-28 Seat Cable27
Secure Seat on Seat Post28
Install Covers28
Install Seat Post Cover28
Figure 2-29 Install Pin and Nylon Washer28
Figure 2-30 Install Seat Post Cover28
Install Carriage Side Covers29
Install Carriage Rubber Plugs29
Figure 2-31 Install Carriage Side Covers29
Figure 2-32 Carriage Rubber Plugs29
Install Charger30
Install Mechanical Stop30
Figure 2-33 Charger and Connectors30
Figure 2-34 Mechanical Stops30
Assemble Rail End Covers31
Mount Charger and Remote Control Holder31
Check Installation and Lubricate31
Figure 2-35 Assemble Rail End Cover31
Remote Control Testing32
Seat Testing32
Rocker Switch Direction32
Swivel Handle32
Figure 3-1 Seat Swivel32
Armrest Safety Switch33
Emergency Stop (Optional)33
Figure 3-2 Armrest Safety Switch33
Figure 3-3 Emergency Stop Button33
Footrest Testing34
Obstacle Detection at Unfolding34
Obstacle Detection at Folding34
Figure 3-4 Footrest Test Direction34
Figure 3-5 Footrest Test Direction at Folding34
Carriage Testing35
Obstacle Detection35
Limit Switch Detection35
Charging35
Figure 3-6 Carriage Obstacle Test35
Dismantling Components36
Figure 4-1 Dismantling Sequence36
Armrest Components Replacement37
Rocker Switch Replacement37
Armrest Switch Replacement37
Figure 4-2 Rocker Switch Replacement37
Emergency Stop Button Replacement (Optional)38
Figure 4-3 Armrest Switch Replacement38
Figure 4-4 Emergency Stop Button Replacement38
Seat Removal39
Swivel Switch Replacement39
Figure 4-5 Seat Removal39
Figure 4-6 Swivel Switch Replacement39
Footrestremoval40
Top Cover Removal40
Footrest and Seat Post Removal40
Figure 4-7 Top Cover Removal40
Figure 4-8 Footrest and Seat Post Removal40
Footrest Safety Cover Removal41
Footrest Obstacle Detecting Switch Removal41
Figure 4-9 Footrest Cover Removal41
Figure 4-10 Footrest Obstacle Detecting Switches41
Footrest Parts Removal42
Figure 4-11 Footrest Parts Removal42
Figure 4-12 Torsion Spring Removal42
Footrest Parts Assembly43
Figure 4-13 Torsion Spring Assembly43
Figure 4-14 Footplate Shaft Assembly43
Figure 4-15 Footrest Parts Removal44
Figure 4-16 Tighten Footrest Safety Cover Screws44
Covers Removal45
Figure 4-17 Top Obstacle Sensor Cover Removal45
Figure 4-18 Bottom Obstacle Sensor Cover Removal45
Figure 4-19 Loose Screws on the Side Cover46
Figure 4-20 Release the Hook of Side Covers46
Batteries Replacement47
Figure 4-21 Disconnect Cables47
Figure 4-22 Disconnect Battery Cable47
Figure 4-24 Slide the Batteries out48
Control PCB Replacement49
Figure 4-25 Battery Cables49
Figure 4-26 Control PCB Screws49
DC Motor Brushes Replacement50
Fuse Replacement50
Figure 4-27 DC Motor Brushes Replacement50
Figure 4-28 Fuse Replacement50
Charging Pins Replacement51
Obstacle Switch Replacement51
Figure 4-29 Charging Pin Replacement51
Figure 4-30 Obstacle Switch Replacement51
Power Switch Replacement52
IR PCB Replacement52
Figure 4-31 Power Switch Removal52
Figure 4-32 IR PCB Removal52
Status Display PCB Replacement53
Key Switch Replacement53
Figure 4-33 Status Display PCB Removal53
Figure 4-34 Key Switch Removal53
Top Rail Accessories Removal54
Carriage Removal54
Figure 4-35Top Rail Accessories Removal54
Figure 4-36 Carriage Jumpers and Rubber Plugs55
Figure 4-37 Move Carriage up by Hand Crank55
Rollers Replacement56
Limit Switches Replacement56
Figure 4-38 Carriage Rollers56
Figure 4-39 Carriage Limit Switches56
Rail Removal57
Figure 4-40 Rail Removal57
Check List58
Rail58
Seat58
Footrest58
Carriage58
PCB Layout59
Figure 5-1 PCB Layout59
Troubleshooting60
Troubleshooting Flowchart60
Figure 6-1Troubleshooting Chart When Stairlift Won't Run60
Diagnostic Codes61
Table 6-1 Troubleshooting61
Wiring Diagram63
Figure 6-2Wiring Diagram63
Table 6-2Wiring Components List64
Tool Kit65
Figure 7-1 Tool Kit of Service65
Table 7-1 Tool Kit65

Merits Pilot - Rollers Replacement; Limit Switches Replacement; Figure 4-38 Carriage Rollers; Figure 4-39 Carriage Limit Switches

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