Quickie QM-7 Series Service Manual ©2012 Sunrise Medical Inc.
Quickie QM-7 Series Service Manual Contents Nine Bars - Solenoid Brake Trip CIntroduction and Basic Setup Ten Bars - High Battery Voltage Motor - Drive Gear engaged Motor - Free-wheel 0.2 0.
Introduction Please read and follow instructions in this service manual before attempting to troubleshoot or repair this product for the first time. If anything in this Service Manual is not clear, or if you require additional Technical assistance, contact Sunrise Medical at: (800) 333-4000 option 2, then option 1. Safely troubleshooting and/or repair of this product depends on your diligence at following the instructions within this manual.
Basic Setup When setting up the components of the chair, complete the following checklist to ensure proper and safe operation of the equipment. Check : □ Are the batteries fully charged? a. Test battery voltage with D.C. meter across the terminals of batteries. The measurement should be above 12 volts D.C. (Note: a fully charged battery is between 12.9 and 13.1 VDC) b. If not, fully charge the batteries. □ Are all necessary power components installed and connected ? a. Input device? (normally Joystick) b.
Section 1 Multimeter Tutorial The Multimeter For Powerchairs, the multimeter is one of the most useful tools in the toolbox (figure .3.1). It can be used to check wires, shorts, voltages, resistance, and all manner of electrical circuits. This tutorial is designed to help clarify the symbols and socket options. This Section is meant to be a General tutorial and may not apply to all of the specific options on the meter in use. Please consult your user's manual, to avoid errant readings.
Section 1 Multimeter Symbol Definition AC - ALTERNATING CURRENT - Use this when you want to test something that has AC current running through it. Typically you'd want to test the voltage of an inverter (for cold cathodes or neons), or a similar device DC- DIRECT CURRENT. This is the type of electrical power produced by a battery. With a battery connector, the black wire(s) should be connected to the negative(-) terminal of the battery and should be considered the common ground.
Section 1 Health and Safety Health and Safety While working on powered mobility products, it is essential to observe good working practices. Below are a series of safety guidelines and recommendations. Please note that these precautions are intended to serve only as a guide, not to supersede or replace any safety statute, NHS or other safety regulations. General • Always wear suitable protective clothing when handling batteries. • Always wear suitable eye protection when drilling or inspecting.
Section 1 Health and safety (cont.) If mishandled batteries can be dangerous and hazardous. • • • • • • All mobility batteries, whether wet type or gel/sealed type, contain lead and sulfuric acid. Both of these materials are toxic and in the case of sulfuric acid, highly corrosive. Additionally, when batteries are charged, they produce hydrogen gas which is “highly” flammable and can cause explosion. This is why proper handling is mandatory at all times.
Section 1 Health and Safety (cont.) • Remove personal items of jewelry, such as rings, watches, chains etc. before working on batteries. Such items could cause short circuits resulting in serious burns. • Batteries are constructed of heavy materials. Therefore moving batteries requires appropriate lifting techniques. Safety footwear should also be worn. In addition, disposal of old batteries requires compliance to state laws. Contact your local authority for their recommendations.
Section 1 Sources of EMI 1. Hand-Held Transceivers: Antenna is usually mounted directly on the unit. These include: • Citizens band (CB) radios • “Walkie-talkies” • Security, fire and police radios • Cellular phones • Lap top computers with phone or fax • Other personal communication devices Note - These devices can transmit signals while they are on, even if not in use. The wheelchair should be switched off when not in use. 2.
Section 1 Cautions for circuit boards To help prevent Electro Static Discharge (ESD) the following proper handling techniques should be followed: ESD: • Do not place Printed Circuit Boards or their containers near sources of strong electrical fields (such as above a CRT). • To avoid the occurrence of static charge or discharge due to friction, keep the Printed Circuit Boards separate from one another and do not stack them directly on top of one another if not protected by antistatic bags.
Section 1 Battery Types IT IS THE RESPONSIBILITY OF THE INSTALLER TO KNOW WHAT KIND OF BATTERIES TO INSTALL IN A CUSTOMER’S WHEELCHAIR! • • • • Deep-cycle batteries used in wheelchairs are designed to be discharged and recharged on a regular basis. Starting or automotive type batteries use a rapid burst of power to start an engine and are quickly recharged by an alternator or generator. They are rated by cold cranking amps, a measure that has no relevance to wheelchair application.
Section 1 VR2 Remote Controller VR2 Controller Buttons Battery Gauge A series of ten LED’s, which indicate charge level, and is also used for determining fault codes. On/Off Key- Press to power on or off the power chair or Controller. Horn Key- Activates a warning horn. Speed/Profile indicator- A series of five LED’s, which display speed and profile settings Speed Decrease. Used to decrease the Speed/ Profile setting. SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL Speed Increase.
Section 1 VR2 Plugs and Connectors Charger Port Joystick 4pin connector 1 = 24 Vdc (POS) 1 2 4 = Red (+) 3 3 = Black (-) 2 = 0 Vdc (NEG) 2 = Blue 3 = Inhibit 1/ Programmer 1 = White Charger port On-Board Charger - Used to power Switchcontrolled actuators and Actuator Inhibit. Motor Plug Port Motor Brakes _ + VR2 Controller PAGE 1.
Section 1 R-NET LED Remote Controller Horn Key- Activates a warning horn. On/Off Key- Press to power on or off the power chair or Controller. Mode Button Used to change modes * * Speed down button 2nd function Tilt down. Speed up button 2nd function Tilt Up *NOTE: If unit is set-up with elevate, 2nd function could be elevate up or down. SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 1.
Section 1 R-NET Remote Controller w/Display On/Off Key- Press to power on or off the power chair or Controller. Horn Key- Activates a warning horn. * * Mode Button Used to change modes * Profile Key- Set function Profiles * Speed up button Speed down button 2nd function Tilt down. Speed Pot. - Adjust Min. and Maximum Speed settings. 2nd function Tilt Up Toggle. Up to power up chair Down to change profiles NOTE: Speed buttons do not affect speed on joysticks with Pots.
Section 1 R-NET Plugs and Connectors Charger Port Jacks Pinout for Rnet Harness 1 2 1 = 24 Vdc (POS) 4 = Red (+) 1 2 3 = Black (-) 4 3 3 2 = Blue wire 2 = 0 Vdc (NEG) 3 = Inhibit 1 = White wire Motor Plug Port On-Board Charger - Used to power Switchcontrolled actuators and Actuator Inhibit.
Section 1 QM-7 Series Modules OMNI (BOTTOM) * User Jack 2 * User Jack 1 Port 2 “D” Type * Port 1 “D” Type On/Off Input Sip and Puff Port ISM (Intelligent Seating Module) Left Lights 4 3 2 1 1 2 3 4 Right Lights PAGE 1.14 * *NOTE: User Jacks and Ports may be used for assignable buttons.
Section 2 VR2 Dual Attendant System Basic Tool List This list of tools will be needed to accomplish all of the tasks given in this Technical Manual • Multimeter - Voltage/Resistance/Current • Metric socket Set • SAE Socket Set • Open-end Wrenches (SAE and Metric) • 3.
Section 2 VR2 Main Wiring Diagrams VR2 BUS SPLITTER 4-Way Tyco Bus VR2 Attendant Hand Control 4-Way Tyco Bus VR2 Hand Control Offboard Charger 4-Way Tyco Bus BUS EXT SEAT BASE 2-Way PGD Actuator Inhibit2 2-Way P G D Inhibit 4-Way Tyco Bus Inhibit3 3-Way P G D C harger Power Module VR2-90 4-Way Intech Motor 2-way SB50 Black Fuse Red Drive Right 2-way SB50 Red Black SHORTING PLUG FOR DRIVE-ONLY 4-Way Intech Motor 2-Way Intech Battery Drive Left SHORTING PLUG (7.
Section 2 Power Module Connections R-Net External 3rd Party Wireless Devices SEAT BASE Bluetooth Modu le 4-Way PGD Bus 4-Way R-net Bus 2-Way PGD Actuator Inhibit2 2-Way P G D Inhibit 4-Way PGD Bus Inhibit3 3-Way P G D C harger Power Module R-Net EL-90 4-Way Intech Motor R-Net EL-90 4-Way Intech Motor 2-Way Intech Battery 2-way SB50 Black Drive Left Fuse Red SHORTING PLUG FOR DRIVE-ONLY Drive Right 2-way SB50 Red Fuse Red Black SHORTING PLUG (7.
Section 2 Switch Operating System VR2 & R-NET Switch-Drive Tilt-only Buddy Button Switch SEAT Switch 6-Way Mini-Fit J r. Inhibit2 2-Way P G D Inhibit 2-Way PGD Actuator Power Module 3-Way P G D C harger Inhibit3 Seat Tilt ACTUATOR ADAPTOR HARNESS 6-Way Mini-Fit J r. BASE ACTUATOR HARNESS 3.5 mm Stereo Phone Jack Dual-Toggle Single Actuator Driver 4-Way Amp Mate-N-Loc Switch-Drive Lift-only Buddy Button Switch 3.
Section 2 3 Axis Actuator Drivers VR2 and R-NET Switch ACTUATOR HARNESS 3-AXIS ACTUATOR DRIVER - TILT 6-Way Mini-Fit J r. Seat Tilt 6-Way ACTUATOR Mini-Fit J r. SHORTING PLUG (Use in place of tilt for legs only) 2-Way P G D Inhibit 2-Way PGD Actuator Inhibit2 BASE 6-Way Mini-Fit J r. SEAT 6-Way Mini-Fit J r. ACTUATOR HARNESS 6-Way Mini-Fit J r. Right/ Extend ELR ACTUATOR HARNESS 6-Way Mini-Fit J r. Left/Lift ELR 6-Way Mini-Fit J r.
Section 2 2 Axis Actuator & Thru-Drive VR2 and R-NET ACTUATOR HARNESS 6-Way Mini-Fit Jr. Switch Seat Lift 2-Way P G D Inhibit Inhibit2 ACTUATOR HARNESS 3-Way Molex Mini-Fit J r. Power Module 3-Way P G D C harger Inhibit3 Switch 3-Way Molex Mini-Fit J r. 2-Way PGD Actuator 6-Way MiniFit Jr. Seat Tilt 6-Way MiniFit Jr. POWER/INHIBIT HARNESS 6-Way MiniFit Jr. Dual Toggle POWER/INHIBIT HARNESS 3.5 mm Phone Jack 3-Way Molex Mini-Fit J r.
Section 2 R-NET Multi Actuators Switch R-NET MULTI-ACTUATOR Switch 4-Way Amp Mate-N-Loc 6-Way Mini-Fit Jr. DRIVE-THRU HARNESS 6-Way Mini-Fit J r. ACTUATOR HARNESS W/INHIBIT Seat Lift ACTUATOR PWR/INHIBIT LIFT 2-Way PGD Actuator Inhibit3 A1 A2 Intellegent Seating Module (ISM) A3 A4 A5 3-Way P G D C harger Power Module EL-90 2-Way P G D Inhibit Inhibit2 3-Way Molex Mini-Fit Jr.
Section 2 R-NET Specialty Controls External 3rd Party Devices Switch/Pot Option 3.5 mm P hone J ack Joystick 4-Way PGD Bus Output Modle 4-Way P G D B us 4-Way PGD Bus 4-Way P G D B us 4-Way PGD Bus Remote Switch Option 4-Way PGD Bus 9-Way "D" Connector Rig ht or Left Hand Mount Offboard Charger 4-Way PGD Bus Specialty Input Device Specialty Input Device Connector Block 4 X CAN 4-Way PGD Bus 3-Way Neutrik C harge P ort Ext. Switch 4-Way PGD Bus 3.5 mm P hone J ack Ext.
Section 3 VR2 Troubleshooting No power: Battery Diagnostics Note: For access to batteries, refer to beginning of Section 7 (Battery Access/ removal) Battery Servicing and Replacement Batteries should last an average of 1 to 1.5 years. Listed below are some Factors that may effect battery performance: • Maintenance - Poor maintenance. • Charging - Improper charging shortens battery life.
Section 3 Battery Connection Test 1. Check that the female VR2 Bus plug on the chair has voltage. Set the meter to DC volts and measure pins 4 (using the red lead of the meter) and 1 (using the black lead of the meter) as shown in (fig 3.2.1) Fig 3.2.1 2. If the voltage meter reads full voltage, then replace the joystick module If the voltage meter reads zero voltage, measure the corresponding pins on the VR2 controller as shown in (fig 3.2.2).
Section 3 VR2 Remote Controller Display The Maximum Speed Indicator Ripples How to Lock or Unlock the Wheelchair Maximum Speed Indicator Ripples. This Indicates that the wheelchair is locked. To unlock the wheelchair, deflect the joystick forwards until the control system chirps. Then deflect the joystick in reverse until the control system chirps. Release the joystick, there will be a long beep. The wheelchair is now unlocked.
Section 3 Troubleshooting with VR2 Diagnostic Codes One Bar - Low Battery Voltage This code could indicate discharged batteries, failed batteries, or poor battery connections. Begin by recharging the batteries and then refer to 3.2 to check batteries and connections. Fig 3.4.1 Two Bars - Left Motor Disconnected 1. Check that the batteries are fully charged and in good condition. Check all cables and connections. Check the connections to the left motor, look for a loose or damaged connector. 2.
Section 3 3. Use the meter to check the resistance across the two bottom contacts (thicker wires) on the 4-pin motor connector as shown in (figure 3.4.5). If the meter reads between 0 to 1.5 ohms, then replace the controller. If none of the above corrects the problem, replace the left motor. Fig 3.4.5 Three Bars - Left Motor Wiring Trip 1. Check that the batteries are fully charged and in good condition; and check all cables and connections.
Section 3 3. Otherwise, check the brushes on the Right motor (figure 3.6.1). Using a Flat head screwdriver remove the brush cap to access the brush. Refer to section 6 (Motor Brush Inspection). Ensure brush is not excessively worn, (brushes need to be at least 1/2" long) note taper on brush for re-installation (figure 3.6.2) Replace as required (figure 3.6.3. Fig 3.6.1 Fig 3.6.2 Fig 3.6.3 Five Bars - Right Motor Wiring Trip 1.
Section 3 Six Bars - Charger Connected The onboard batteries are being charged with the off-board charger. You will not be able to drive the wheelchar until the charger is disconnected. You will have to reset the control system by switching off the power and then powering up again. The On-Board charger has no indication that the chair is charging, and the chair will not move until complete.
Section 3 Nine Bars - Solenoid Brake Trip The parking brakes have a bad connection. Make sure that the motor is in the locked/ engaged position. Check the parking break and motor connections. Make sure the control system connections are secure. Measure the two small contacts on the four-pin motor connector (figure 3.8.1). Fig 3.8.1 (figure 3.8.2) shows Motor in locked (Drive) position, for Testing in Nine bar state. fig. 3.8.
Section 4 R-net Troubleshooting 2 Chair Will Not Power Up 1 3 1. Check for battery voltage at the hand control using a Multimeter. Connect the Multimeter between the two outside pins (figure 4.1.2), pin 1 is positive (+), pin 2 is negative (-). Fig. 4.1.1 2. If full battery voltage is present, replace the following components in this order: a. Communication Cable b. Hand control c. Control module. (refer to the Control Module Replacement section of this manual.) d. Retest as necessary. Fig. 4.1.2 3.
Section 4 Note: The connector shown in (figure 4.1.3) is mated incorrectly. The connectors are designed to visually indicate when they are not mated correctly. If yellow is showing between the halves (A), push them closer together until only black is visible. Retest as necessary. 4. Verify that the bus cables are correctly mated between the hand control and the control module (figure 4.2.1). A fig 4.2.1 Note: For the next step, locate the power connector plug.
Section 4 Note: For access to batteries, refer to beginning of Section 7 (Battery Access/ removal) Battery Voltage Tests 6. Verify that battery voltage is present at each connector leading to the batteries (figure. 4.3.1). fig. 4.3.1 7. If battery voltage is not present, as shown in (figure 4.3.2)use a Multimeter and measure for continuity across the fusible links connected to positive (+) terminal of each battery (figure. 4.3.2). Normal resistance is less than 1 ohm.
Section 4 R-net Fault Codes Fault Codes for Hand Control or Omni Identified Module Trip Code The R-Net control used on this power chair is constantly monitoring for conditions that can cause unsafe or erratic operation. When a fault is displayed, refer to the fault code table shown below for a list of corrective actions. The following identifies which module of the control system has registered the problem.
Section 4 Table 1- R-NET Error Codes (Cont.) Trip Text Over-current Overtemp. (Acts) Overtemp. (Lamps) DIME Error Memory Error PM Memory Error Bad Cable Bad Settings Module Error System Error SID Detached User Switch Detached Gone to Sleep Charging SUNRISE MEDICAL Corrective Action This fault occurs when the limits of an actuator circuit is exceeded. Perform Tilt Will Not Operate troubleshooting section of this manual to test the end of travel limit switches.
Section 4 Fault Codes from LED Battery Gauges Table 2- Hand control Fault Codes Note: On hand controls that contain LED battery gauges, they will display the fault code by illuminating various LEDs . Refer to table below for corrective action Bar Indication Corrective Action The battery needs charging or there is a bad connection to the battery. Check the connections to the battery. If the connections are good, recharge the battery. Verify that the left motor is connected to the control module.
Section 4 Example of R-10 Fault Isolation 1. In this example, the right motor has been disconnected. (figure.4.7.1). The hand control displays the fault and the power chair will not operate. 2. To troubleshoot this problem, refer to Table 1, Error Codes. 3. From this error we see that the problem is being recorded in the PM (Control Module). 4. The hand control tells us that motor 2 (M2) has the error and it is with the brake circuit. Motor 2 is the right motor. 5.
Section 4 3. Locate the creep micro-switch mounted at the rear of the actuator (A) (figure 4.8.1). Note: The creep micro-switch may be seen from the top of the seating system on the right rear of the actuator. It may be necessary to remove the seat pan to access the switch. A 4. Manually operate the creep micro-switch while observing the hand control or Omni for the turtle symbol to go on and go off with the micro-switch operation. If the symbol changes, the problem is in the programming.
Section 4 Chair Won't Drive in Creep Speed When Tilted An external micro-switch is mounted next to the actuator in the rear of the lift system. This micro-switch is closed when the tilt is lowered. When micro-switch is closed, it sends a signal from the control module through the 6-pin connector. The presence of this signal informs the control module that the tilt is less than 20 degrees and that maximum speed can be used. If the tilt is more than 20 degrees, the switche opens and invokes “creep” speed.
Section 4 6. Test the micro-switch with the following test. a. Ensure that the tilt is beyond 20 degrees tilt. b. Use Multimeter and measure continuity between the indicated pins (figure 4.10.1) on the 6-pin connector mounted on the tilt. When seat is tilted the indication should be open (figure 4.10.2). c. If it is closed, check parts manual for availability of the micro-switch assembly. Refer to MicroSwitch Removal, and Tilt Actuator removal subsections in section 7 of this manual. d. Retest as necessary.
Section 4 Warning: Use caution in the next step. Do not short the leads of the Multimeter together or damage may occur to the control module. 6. At the 6-pin connector on the cable leading to the control module, verify that battery voltage is present between the indicated pins (figure 4.11.1). Note: The polarity of the voltage is not important since it is reverses when the opposite direction is selected. 7. If voltage is not present, replace the cable leading to the control module.
Section 4 Note: If the tilt actuator does not operate, it is only possible to check for one condition. Pick the condition below that best describes the position of the tilt system. 9. Example 1, Tilt in mid-stroke. Measure continuity between the pins indicated (figure 4.12.2) this is the resistance through the actuator motor windings (Figure 4.12.1). If this reading is not correct, replace the tilt actuator and retest. fig. 4.12.1 fig. 4.12.
Section 5 Battery Testing Note: The QM-710 power chair uses either (2) 22NF, or GRP 24 batteries connected in series. The circuit is protected by a non-serviceable fusible link in each battery harness. Prior to performing any test, the battery terminals should be clean and tight. For Access to the Batteries, Refer to Section 7: Battery Access/Removal. 1. Check for initial battery voltage at the joystick using the battery charger connector. Connect the Multimeter to the two outside pins (figure 5.1.1).
Section 5 d. Operate the power chair at high speed by operating the joystick in a high-speed profile. The motors should put approximately a 5 to 10 amp load on the batteries. e. Continue to operate the motors for 60 seconds. Record the readings and compare them to the following: i. During the first 5 seconds, normal voltage drop should be approximately .5 to .6 VDC. ii. During the remaining portion of the 60 seconds, the voltage should stabilize, dropping no more than an additional .1 to .2 VDC. iii.
Section 5 3. The individual voltage of each battery may also be checked using a Multimeter. Connect the Multimeter to the battery connector (figure 5.3.1). Note: Refer to Battery Removal (Section 7). Compare the values to the following. a. 12.8 VDC indicates a fully charged battery. b. The battery readings should be similar. Newer batteries typically read within .1 to .2 VDC. c. 13 VDC or more indicates an overcharged battery, or one that has a surface charge from being recently removed from the charger.
Section 6 Motor/Gearbox Inspection Note: This procedure may be done with or without removing the motor from the power chair. If the motor/gearbox is to be removed from the power chair, refer to Motor and Gearbox Removal, Section 7 of this manual. Consider replacing any motor/gearbox assembly that does not pass the following inspections. fig. 6.1.1 1. Inspect the output shafts for signs of grease leakage (figure. 6.1.1). 2. Inspect the the gearbox release arm to the motor/gearbox assembly.
Section 6 Motor Brush Inspection Note: Disconnect the motor connector from the control module first, if the motor/gearbox assembly is undergoing the following procedure. Note: When replacing brush assemblies, always replace the brushes on both motors. Break in the brush assemblies prior to delivering the power chair to the customer by releasing the gearbox assembly and operating the motor for 20 to 30 minutes, alternating between forward and reverse. 6. Inspect the brush assembly (figure. 6.2.1).
Section 6 Measure Resistance 9. Measure the resistance of the park brake assembly by connecting a Multimeter to the small pins of the 4-pin connector (figure. 6.3.1). Normal resistance is approximately 12 to 15 ohms. fig. 6.3.1 10. Measure the resistance through the motor brush assembly and motor by connecting a Multimeter to the large pins of the 4-pin connector (figure. 6.3.2). Normal resistance is approximately .5 to .9 ohms. fig. 6.3.
Section 7 Removal Procedures Battery Access/Removal 1. For Access to Batteries, locate the left and Right thumbscrews that hold the seating assembly to the base (figure. 7.1.1) . Remove the thumbscrews. Lift and pivot the Seating system rearward. fig. 7.1.1 Please refer to, and follow the Health and Safety Section for Battery safety and handling procedures in in front of this Service manual 2.
Section 7 Battery Installation 5.Re-attach the harness to the Battery posts with an open end wrench as shown in (figure 7.2.1). It is recommended to tighten the Battery Harness hardware to a maximum torque of 60in-lbs 6. It is important to follow the basic hardware stackups shown below when re-attaching the harness to the battery posts for a reliable connection. fig. 7.2.1 Option 1 Post on top Option 2 Post on top Option 3 Flat top Nut Std washer Bolt Lock washer 7.
Section 7 Motor and Gearbox Removal 1. The Motor must be disconnected from power before removal. For controller access, remove the controller cover/shroud from the back of the chair with an M4 Hex Key locating the two attachment screws. (figure.. 7.3.1). fig. 7.3.1 2. Locate and disconnect main power from the control module by disconnecting the power harness from the batteries. 3. Locate and disconnect the appropriate Motor Lead, from the control module. (M1 , M2 or both) (figure.. 7.3.2). M1 M2 fig. 7.
Section 7 Removal for units with Mechanical Brake 1. The process for units with a Mechanical Brake is exactly the same as the standard configuration, except there are 2 brackets located with the motor, the mechanical brake bracket, shown in (figure 7.4.1) and the standard motor bracket. The mechanical brake bracket is removed first by taking out the 3 longer screws next to the wheel and then the remaining 3 screws holding the motor to the motor bracket are removed. fig. 7.4.
Section 7 3. Use 4 mm Hex Key to remove left and right screws/washers attaching the controller to the Battery Box (figure 7.5.1). fig. 7.5.1 4. Once all bolts and washers have been removed, Separate the module from the backing plate and remove it. (figure 7.5.2) fig. 7.5.2 5. To re-install the controller reverse the previous steps. (figure 7.5.3) fig. 7.5.3 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 7.
Section 7 Front and Rear Caster Wheel Removal 1. Use a 17 mm socket to remove the Locknut holding the wheel to the caster shaft, and remove the wheel (figure 7.6.1, and 7.6.2). fig. 7.6.1 fig. 7.6.2 Front and Rear Caster Stem Removal 1. To remove or replace the Caster Stem, Use a Flat Head Screwdriver to remove the Caster cap as shown in (figure 7.6.3) fig. 7.6.3 2.
Section 7 Gas Spring Removal Note: The shocks used in this power base are pre-adjusted at the factory. Please refer to Section 9- Suspension overview. 1. Remove the wheel assembly by using a 5/8" deep socket wrench to remove the 3 bolts that hold the wheel and rim in place (figure 7.7.1). Before removing the Gas Spring, raise the center of the chair with a lift so that the suspension can come all of the way down. fig. 7.7.1 2. For Gas Spring Removal, Remove the Lower holding bolt (A).
Section 7 4. Once the top holding bolt is removed, loosen the set screw (A) as shown by using a 4mm Hex wrench (figure 7.8.1) A fig. 7.8.1 5. Once set screw is loosened, the gas spring shaft can be unscrewed and removed from the securing point as shown in (figure 7.8.2) fig. 7.8.2 Note: A Gas spring replacement kit is available. Those Parts should be used in the following steps.
Section 7 Tilt Actuator Removal 1. Remove the seating system to expose the actuator. Disconnect the 6-pin connector by Pushing down on tab (figure 7.9.1) fig. 7.9.1 Caution: The actuator wires are fragile. Use caution when removing. Do not remove the bullet connector 2. Note the connections leading to the Tilt Actuator, Separate and label the those wires. Reverse the procedures to replace it and retest as necessary. (figure 7.9.2). fig. 7.9.2 3.
Section 7 4. Remove the actuator and micro-switch assembly as one part if the entire assembly is to be replaced (figure 7.10.1). 5. Reverse the previous procedure to install the actuator and micro-switch assembly. Retest as necessary. fig. 7.10.1 Recline Actuator Removal Note: In order to remove either the recline or the shear actuator, the ISM box and mount must be removed. The gas strut must also be unbolted on one end, and swung out of the way.
Section 7 2. Remove the rear Recline shroud. This will allow access to the ISM control Module. (figure 7.11.1) fig. 7.11.1 3. Use a 9/64" Hex wrench to remove the socket head cap screws that attach the ISM mount to the recline structure (figure 7.11.2). fig. 7.11.2 4. Use the same wrench to loosen (Do not Remove) the bottom two socket head cap screws. (figure 7.11.3) fig. 7.11.3 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 7.
Section 7 5. Locate and disconnect the two main leads to the actuators(figure 7.12.1) Recline Actuator lead is shown on left, and Shear actuator lead is shown on Right. fig. 7.12.1 Caution: During the next steps, the gas strut will be detached. It is under pressure. Once the recline actuator is detached from it's mount, the gas Strut will be allowed to fully extend. Gas Strut Removal 6. Locate the top Gas Strut attachment bolt (figure 7.12.
Section 7 7. Prior to removal of the recline actuator, observe the position of the top and bottom bracket to ensure that it is mounted in the same position during re-assembly. One side of the top bolt for the Recline actuator is accessed as shown in (figure 7.13.1). The nut and washer are found on the other side as shown in (figure 7.13.2) fig. 7.13.1 fig. 7.13.2 8. Use a 1/4" Hex wrench and a 9/16" open-end wrench and remove the top bolt that holds the recline actuator to the back structure. (figure 7.
Section 7 9. Use a 9/16" socket and ratchet to remove the bolts that attach the bottom of the recline actuator (figure 7.14.1) 10. Once the bolt is removed, the same technique may be used to remove the lower recline actuator mount. fig. 7.14.1 10. Unplug all of the connectors to the recline actuator (figure 7.14.2) 11. The recline actuator can now be replaced with a new actuator. 12.
Section 7 Shear Actuator Removal Note: In order to remove the Shear actuator, the Gas strut and Recline actuator must be removed first. Refer to the previous pages for details. 1. Once the recline actuator is removed, locate the ISM control box on the back of the chair and disconnect it by unplugging the 6-Pin connector. (figure 7.15.1) 2. Using a 7/16" open-end wrench and a 3/16" hex wrench, remove the top and bottom mounts (figure 7.15.1) 3.
Section 7 2. To remove the actuator, (figure 7.16.1) there are 2 sets of attaching hardware, remove both sets of bolts. A 3mm key is utilized or ratchet to remove plate (figure 7.16.2) fig. 7.16.1 fig. 7.16.2 3. The Second actuator bolt can be located as shown in (figure 7.16.3) To remove, use a 13mm open end wrench on nut and slip bolt out of assembly. fig. 7.16.3 PAGE 7.
Section 8 Adjustment procedures Seat/Back Width adjustment Note: The same procedure is used for the 18" - 22" wide seating system ASAP II Seating 16” - 20” wide is shown. The ASAP II seating system is fully adjustable to allow changes from 16” to 20” or 18” – 22”. This requires a frame weldment and seat pan plates adjust for seat growth. The picture shown in (figure 8.1.1) has a seat width of 20” . This detail shows how easy it is to change back to 16” wide. A fig. 8.1.
Section 8 5. Remove the nut, and bolt that secures the rear towel bar using a 4mm Hex Key and a 13mm open end wrench or ratchet as shown in (figure 8.2.1). fig. 8.2.1 6. Loosen the Back bracket on the chair to allow for changes to the seat width. (figure 8.2.2). fig. 8.2.2 NOTE: It is recommended to use the back width to accommodate the user, for example – 16 with 16 wide – 18 with 18” wide. If, however there is a ½ “ adjustment needed, the brackets in (figure 8.2.
Section 8 8. After checking alignment, symmetry, and measurement of the final adjustment change, (figure 8.3.1) the nuts and bolts can be retightened in the reverse order of the steps listed. Make sure all bolts are tightened to appropriate specifications. fig. 8.3.1 Legrest adjustment Long or Short Center-Mount adjustment 1. To perform a Legrest adjustment (figure 8.3.2) the following tools are required: A 5mm Hex Key, and a 13mm open end wrench and/or ratchet. fig. 8.3.
Section 8 3. There are 5 sets of holes as seen on the front bars (A), and 6 sets of holes as seen on the centerpost (B) (figure 8.4.1) Bolts can go through any of these holes to give adjustability of up to 6 inches from top to bottom. To extend the front arms further, simply loosen 5mm size SHCS screws and move the bars further forward, then retighten. B A 4. Once desired height is achieved, Reset placement of bolts then tighten with 5mm Hex key and 13mm wrench.
Section 8 4. Left Command (4) - Operates extension of leg outward and inward. Actuator is shown, (fig 8.5.1) fig. 8.5.1 Back-rest Angle Adjustment 1 Make sure you have the right tools- 5mm Hex Key, and 13mm open end wrench and/or ratchet. 2. Loosen the 2 BHCS bolts (A) (figure 8.6.1) with a 5mm Hex key and use 13mm open end Wrench for the nuts (B). A B fig. 8.5.2 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 8.
Section 8 Note: Take care not to lose the saddles, or plastic washers between Bracket and seat rail while performing the next step. 3. To make a small angle change to one of four possible settings, (-4°, 0, 4°, 8°) pull bolt out and change the position of the front edge bracket. (figure 8.6.1) Then re-attach the nut and tighten bolt into place. make sure plastic saddles and washers are in place behind the bracket. -4° 0° 4° 8° fig. 8.6.
Section 8 Rear Bracket Seat height adjustment 1 The adjustment can be done by removing the rear shroud (See rear shroud removal section 8) and the Bluetooth module, if present. The rear bolts are inserted on the inside of brackets and are adjusted to 1" increments. (figure 8.7.1) fig. 8.7.1 2. Once you have the correct seat height, on both sides, re-insert the threaded bolt and tighten (figure 8.7.2) fig. 8.7.
Section 8 2. Use a 7/16" socket and ratchet to remove the bolts holding pivot point (A). Raise it to the desired location.(figure 8.8.1) A fig. 8.8.1 Note: If the pivot point is raised, it is suggested to replace the back pan with a larger pan to decrease the gap from the bottom of the back to the seat-pan. 3. Re-insert and tighten the bolts securing the pivot point. (figure 8.8.1) 4. As the pivot point is raised, the recline actuator and gas strut must be raised an equal amount.
Section 8 Cantilevered Armrest adjustments A 1. The Kids Cantilevered Armrest angle adjust range is from 0° to 40° in 5° increments. To adjust the armrest angle up or down, loosen the pivot bolt (A) and unscrew the 5mm bolt (B) using a Hex key (figure 8.9.1) Adjust as necessary, using either the inside or outside bolt hole (C) and then re-tighten bolts to specifications. B C fig. 8.9.1 2. Height adjustment for the armrest also utilizes the 5mm Hex Key. Loosen the bolt as shown in (figure 8.9.
Section 8 3. For Extreme angle adjustments, remove the outside shell of the armrest casing using a 7mm Hex Key on the bolt as shown in (figure 8.10.1) and (figure 8.10.2) fig. 8.10.1 fig. 8.10.2 4. For Extreme angle adjustments, remove the outside shell of the armrest casing using a 7mm Hex Key on the bolt as shown in (figure 8.10.3) fig. 8.10.3 fig. 8.10.4 5. Remove the flathead socket screws holding the insert block in place and adjust as shown.
Section 9 Reference and Options Non-expandable 3-Axis controls 1. 2-Axis box 4.5 and 7.0 AMP box used for Lift and Tilt (figure 9.2.1) fig. 9.2.1 2. 3-Axis 7.0 AMP box used for Tilt and power legrests (figure 9.2.2) fig. 9.2.2 3. 3-Axis 4.5 AMP box used for Lift and power legrests, and for HD Tilt (figure 9.2.3) fig. 9.2.3 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 9.
Section 9 Powered elevating or articulating legrest VR2/R-Net Control The actuator buttons can operate any factory approved actuator. Operation is dependent on what options are fitted to your wheelchair. To operate the legrests, seat tilt, seat lift or back rest recline follow the following steps 1. For VR2, Push one of the actuator buttons that has the seat icon on it to select actuator mode 2. Operate the joystick in the forward or rearward direction to move the desired actuator up or down. 3.
Section 9 Reference: Inhibit scheme SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 9.
Section 9 Reference: R-NET Joystick & Omni Display Symbols PAGE 9.
Section 9 Reference: Seat Height Adjustment Matrix STFH Position CHAIR Low Configuration STFH (in) QM710 QM715 X X X X X X X X X X X X X X X X X X X X X QM710 QM715 X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X 1st hole N/A 18.6 1/A N/A 19.6 2/B N/A 20.6 3/C N/A 21.6 4/D N/A 18.8 21.2 1/A 1/A N/A 2/B 2/B N/A 20.8 3/C N/A 21.8 4/D N/A 18.3 2/A N/A 1st hole 19.8 22.2 19.3 3/B N/A 1st hole 20.3 4/C 1st hole 21.
