Genie GR-12 Service Manual
  1. Manuals
  2. Brands
  3. Genie Manuals
  4. Lifting Systems
  5. Lift Guard GR-12
  6. Service manual

Genie GR-12 Service Manual

Hide thumbs Also See for GR-12:
Table of Contents

Advertisement

Quick Links

See also: Service Manual , Operator's Manual
Service Manual
Refer to inside cover for additional serial number information
(from serial number GR05-5001)
(from serial number GR05-5001)
(from serial number GR05-5001)
Part No. 84700
Rev B
November 2005

Advertisement

Table of Contents
loading

Related Manuals for Genie GR-12

Summary of Contents for Genie GR-12

  • Page 1 Service Manual Part No. 84700 Rev B November 2005 Refer to inside cover for additional serial number information (from serial number GR05-5001) (from serial number GR05-5001) (from serial number GR05-5001)
  • Page 2 Technical Publications Genie Industries has endeavored to deliver the highest degree of accuracy possible. However, continuous improvement of our products is a Genie policy. Therefore, product specifications are subject to change without notice. Readers are encouraged to notify Genie of errors and send in suggestions for improvement.
  • Page 3 Country of manufacture: USA Facility code This machine complies with: used only for models manufactured ANSI A92.6-1999 in multiple facilities B354.2-01 Genie Industries 18340 NE 76th Street Redmond, WA 98052 PN - 77055 Part No. 84700 GR-12 • GR-15 • GR-20...
  • Page 4 November 2005 This page intentionally left blank. GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 5 You read, understand and obey: - manufacturer’s instructions and safety rules - employer’s safety rules and worksite regulations - applicable governmental regulations You have the appropriate tools, lifting equipment and a suitable workshop. Part No. 84700 GR-12 • GR-15 • GR-20...
  • Page 6 Be sure to properly dispose of old oil or other fluids. Use an approved container. Please be environmentally safe . GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 7: Table Of Contents

    A-1 Perform Pre-operation Inspection ............3 - 6 A-2 Perform Function Tests ..............3 - 6 A-3 Perform 30 Day Service ..............3 - 7 A-4 Grease the Steer Yokes ..............3 - 7 Part No. 84700 GR-12 • GR-15 • GR-20...
  • Page 8 D-3 Inspect and Lubricate the Lifting Chains ........... 3 - 29 D-4 Replace the Hydraulic Tank Return Filter ......... 3 - 29 Checklist E Procedure E-1 Test or Replace the Hydraulic Oil ............. 3 - 30 viii GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 9 Steer Cylinder .................. 4 - 36 Steer Bellcrank ................. 4 - 36 Non-steer Axle Components Drive Brake ..................4 - 37 Brake Release Hand Pump Components 10-1 Brake Release Hand Pump Components ......... 4 - 38 Part No. 84700 GR-12 • GR-15 • GR-20...
  • Page 10 (all models without platform overload protection) ......... 6 - 6 Electrical Schematic - CE models (all models with platform overload protection) ..........6 - 8 Hydraulic Component Reference and Symbols Legend ......6 - 11 Hydraulic Schematic .................. 6 - 12 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 11: B Machine Specifications

    (ANSI, CSA and Australia models) 1.57 m GR-12 and GR-15 68.1 in (CE models) 1.73 m GR-20 78 in (all models) 1.98 m For operational specifications, refer to the Operator's Manual. Part No. 84700 GR-12 • GR-15 • GR-20 2 - 1...

  • Page 12: Performance Specifications

    1.8 km/h Chevron Rykon MV oil is fully compatible and 12.2 m / 24.8 sec mixable with Shell Donax TG (Dexron III) oils. Genie specifications require hydraulic oils which are Platform raised 0.5 mph designed to give maximum protection to hydraulic...

  • Page 13: Manifold Component Specifications

    7.5 to 10.5Ω with manual override 12V DC with diode (schematic item N) Continuous improvement of our products is a Genie policy. Product specifications are subject to change without notice. Part No. 84700 GR-12 • GR-15 • GR-20 2 - 3...

  • Page 14: Hydraulic Hose And Fitting Torque Specifications

    Hydraulic Hose and Fitting Torque Specifications Your machine is equipped with JIC 37° flared fittings and hose ends. Genie specifications require that fittings and hose ends be torqued to specification when they are removed and installed or when new hoses or fittings are installed.
  • Page 15 5 Operate all machine functions and inspect the hoses and fittings and related components to confirm that there are no leaks. Part No. 84700 GR-12 • GR-15 • GR-20 2 - 5...
  • Page 16 54.1 53.2 72.2 46.7 63.3 62.3 84.4 18.9 25.6 25.1 34.1 48.6 64.9 69.7 94.5 92.2 30.1 40.8 54.3 77.4 46.9 63.6 62.5 84.8 64.5 87.5 86.2 1055 1233 2 - 6 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 17: Observe And Obey

    Indicates that an incorrect result has occurred · Wheels chocked after performing a series of steps. · All external AC power supply disconnected from the machine Part No. 84700 GR-12 • GR-15 • GR-20 3 - 1...

  • Page 18: Pre-Delivery Preparation Report

    The maintenance inspection report contains checklists for each type of scheduled inspection. Make copies of the Maintenance Inspection Report to use for each inspection. Store completed forms for three years. 3 - 2 GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 19 PO Box 97030 Grantham, Lincolnshire Redmond, WA 98073-9730 NG31- 6BH England (425) 881-1800 (44) 1476-584333 Copyright © 2002 by Genie Industries. Genie® is a registered trademark of Genie Industries. Rev A Part No. 84700 GR-12 • GR-15 • GR-20 3 - 3...
  • Page 20 Section 3 • Scheduled Maintenance Procedures November 2005 This page intentionally left blank. 3 - 4 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 21: Maintenance Inspection Report

    After repair, place a check in the “R” box. Legend Y = yes, acceptable N = no, remove from service R = repaired Part No. 84700 GR-12 • GR-15 • GR-20 3 - 5...

  • Page 22: Checklist A Procedures

    Complete information to perform this procedure is Refer to the Operator's Manual on your machine. available in the appropriate operator's manual. Refer to the Operator's Manual on your machine. 3 - 6 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 23: Perform 30 Day Service

    2 Pump multipurpose grease into the steer yoke until the steer yoke is full and grease is being forced past the bearings. Repeat this step for the other steer yoke. Grease type Multipurpose grease Part No. 84700 GR-12 • GR-15 • GR-20 3 - 7...

  • Page 24: B Checklist B Procedures

    1 Put on protective clothing and eye wear. lowering the platform. 2 GR-12: Raise the platform 5 Be sure that the battery cable connections are approximately 3 feet / 1 m. free of corrosion.
  • Page 25 50 feet / 15 m. If you have any further questions regarding the battery charger operation, please contact the Genie Industries Scissor Service Department. Part No. 84700 GR-12 • GR-15 • GR-20 3 - 9...

  • Page 26: Inspect The Electrical Wiring

    · Ground control panel · Hydraulic power unit 4 Inspect for a liberal coating of dielectric grease in all wiring connections between the ECM and the platform controls, and level sensor wiring. 3 - 10 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 27: Inspect The Tires And Wheels (Including Castle Nut Torque)

    4 Install a new cotter pin. Bend the cotter pin to lock it in place. Part No. 84700 GR-12 • GR-15 • GR-20 3 - 11...

  • Page 28: Clean And Lubricate The Columns

    Dealer service is strongly nylock nut recommended. spring upper sequencing bracket 4 If needed, apply a generous amount of sequencing cable Boe-lube wax to the inside and outside channels of each column. 3 - 12 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 29: Test The Emergency Stop

    Result: No machine functions should operate. The red Emergency Stop button at the ground controls will stop all machine operation, even if the key switch is switched to platform control. Part No. 84700 GR-12 • GR-15 • GR-20 3 - 13...

  • Page 30: Test The Key Switch

    Result: The machine functions should not operate. 6 Turn the key switch to the off position. 7 Test the machine functions from the ground and platform controls. Result: No machine functions should operate. 3 - 14 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 31: Inspect The Voltage Inverter (If Equipped)

    If the battery 21 volt fault LED (21V) blinks one time, the battery voltage is less than 20V DC. The inverter will continue to operate until the battery voltage falls to 17.8V DC. Part No. 84700 GR-12 • GR-15 • GR-20 3 - 15...

  • Page 32: Test The Drive Brakes

    5 Choose a point on the machine; i.e., contact patch of a tire, as a visual reference for use when crossing the test line. 3 - 16 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 33: Test The Drive Speed - Stowed Position

    4 Press the drive function select button. 5 Choose a point on the machine; i.e., contact patch of a tire, as a visual reference for use when crossing the start and finish lines. Part No. 84700 GR-12 • GR-15 • GR-20 3 - 17...

  • Page 34: Test The Drive Speed - Raised Position

    Refer to Section 2, 5 Raise the platform approximately 4 feet / 1.2 m Specifications. from the ground. 6 Press the drive function select button. 3 - 18 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 35: Test The Slow Drive Speed

    4 Press the slow speed select button. Specifications. 5 Choose a point on the machine; i.e., contact patch of a tire, as a visual reference for use when crossing the start and finish lines. Part No. 84700 GR-12 • GR-15 • GR-20 3 - 19...

  • Page 36: Test The Flashing Beacons

    Result: The motion alarm should sound when the joystick is moved off center in either direction. 7 Press the drive function select switch. 3 - 20 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 37: Perform Hydraulic Oil Analysis

    Replace the oil when it fails the test. See E-1, Test or Replace the Hydraulic Oil. Part No. 84700 GR-12 • GR-15 • GR-20 3 - 21...

  • Page 38: Inspect The Breather Cap

    Extremely dirty conditions may require that the cap be inspected more often. 1 Confirm that the breather cap is installed on the hydraulic tank and is not clogged or damaged. 3 - 22 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 39: Checklist C Procedures

    2 Install and new cap onto the tank. 1 Locate the grease fittings on each pivot pin of the platform overload assembly. 2 Thoroughly pump grease into each grease fitting using a multi-purpose grease. Part No. 84700 GR-12 • GR-15 • GR-20 3 - 23...

  • Page 40: Test The Platform Overload System (If Equipped)

    See D-1, Calibrate the Platform Overload System (if equipped). 5 Test all machine functions from the platform controls. Result: All platform control functions should not operate. 3 - 24 GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 41 12 Test all machine functions from the platform controls. Result: All platform control functions should operate. If the platform overload system is not operating properly, see D-1, Calibrate the Platform Overload System (if equipped). Part No. 84700 GR-12 • GR-15 • GR-20 3 - 25...

  • Page 42: Checklist D Procedures

    (GR-12 and GR-15 models) 229 kg (GR-20 models) 159 kg AWP and Fiberglass Platform (all models) 159 kg Stockpicker Platform (GR-12 and GR-15 models) 229 kg (GR-20 models) 159 kg 3 - 26 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 43: Inspect The Mast Assembly For Wear

    16 Test all machine functions from the ground idler wheel controls. spacer Result: All ground control functions should not 2 Raise the platform until approximately operate. 4 inches / 10 cm of each column is visible. Part No. 84700 GR-12 • GR-15 • GR-20 3 - 27...
  • Page 44 Section 3 • Scheduled Maintenance Procedures November 2005 CHECKLIST D PROCEDURES REV B 3 GR-12 and GR-15: Visually inspect the top of 8 Inspect each idler wheel for the following: each column for clearance between the roller · Excessive wear on the side flanges wheels and the adjacent column surface.

  • Page 45: Inspect And Lubricate The Lifting Chains

    6 Activate and hold the platform up toggle switch. 7 Inspect the filter and related components to be sure that there are no leaks. 8 Clean up any oil that may have spilled. Part No. 84700 GR-12 • GR-15 • GR-20 3 - 29...

  • Page 46: Checklist E Procedure

    Torque specifications 2 Open the power unit module tray. Hydraulic tank retaining fasteners, dry 35 in-lbs 4 Nm Hydraulic tank retaining fasteners, lubricated 26 in-lbs 2.9 Nm 3 - 30 GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 47 Do not allow the pump to cavitate. 14 Repeat steps 12 through 13 until the hydraulic system and tank are both full. Part No. 84700 GR-12 • GR-15 • GR-20 3 - 31...
  • Page 48 Section 3 • Scheduled Maintenance Procedures November 2005 This page intentionally left blank. 3 - 32 GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 49 Indicates that a specific result is expected after performing a series of steps. Indicates that an incorrect result has occurred after performing a series of steps. Part No. 84700 GR-12 • GR-15 • GR-20 4 - 1...

  • Page 50: Platform Controls

    H1 board retaining fasteners. platform controls circuit board U3 red Emergency Stop button P2 7 Carefully remove the platform controls circuit board from the platform control box lid. 4 - 2 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 51: Controller Adjustments

    6 Push in the red Emergency Stop button to the diagnostic display on the power unit side of the off position at both the ground and platform machine. controls and turn the key switch to the off position. Part No. 84700 GR-12 • GR-15 • GR-20 4 - 3...
  • Page 52 5 Release the lift function select and horn buttons. Result: The diagnostic display will show the maximum lift speed percentage. 6 Press the lift function select button. 4 - 4 GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 53 Any change in software settings will not take effect until the key Result: The diagnostic display will show the switch is turned to the off position. maximum lift speed percentage. Part No. 84700 GR-12 • GR-15 • GR-20 4 - 5...
  • Page 54 Any change in software settings buttons. will not take effect until the key Result: The diagnostic display will show the switch is turned to the off position. maximum lift speed percentage. 4 - 6 GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 55 Any change in software settings will not take effect until the key Result: The diagnostic display will show the switch is turned to the off position. maximum lift speed percentage. Part No. 84700 GR-12 • GR-15 • GR-20 4 - 7...

  • Page 56: Software Configuration

    PLATFORM CONTROLS REV B Software Configuration The Electronic Control Module (ECM) contains programming for all configurations of the Genie Runabout. The machine can be adjusted to a different configuration using the buttons at the platform controls. How to Determine the Software Configuration 1 Remove the platform controls from the platform.
  • Page 57 10 Turn the key switch to the off position. Any change in software settings will not take effect until the key switch is turned to the off position. Part No. 84700 GR-12 • GR-15 • GR-20 4 - 9...
  • Page 58 When this option is configured, a dot in the diagnostic display window will remain continuously illuminated when the ECM is in the 'SC' mode OR when the platform up function is activated. 4 - 10 GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 59 When the ECM is in the 'SC' mode and the option is deactivated, there will not be an illuminated dot in the diagnostic display window. Part No. 84700 GR-12 • GR-15 • GR-20 4 - 11...

  • Page 60: Platform Components

    3 Remove the platform control box from the platform and set it to the side. 4 Remove the fasteners securing the platform mount to the mast. Remove the platform and mount from the machine. 4 - 12 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 61: Mast Components

    8 Place the mast assembly on a suitable structure the Platform. capable of supporting it. 2 Tag and disconnect the power to platform wire harness at the quick disconnect near the Electronic Control Module (ECM). Part No. 84700 GR-12 • GR-15 • GR-20 4 - 13...
  • Page 62 1 column clevis block (not shown) clevis block fastener lift cylinder (not shown) 4 - 14 GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 63 15 Remove the adjustment nuts from the chain tension rocker on the column. 16 Remove the column by sliding the column out the bottom of the mast. Part No. 84700 GR-12 • GR-15 • GR-20 4 - 15...
  • Page 64 9 Install the adjustment nuts on the number 1 column chains. Tighten the adjustment nuts until the lifting chains have equal tension and the chain tension rocker is centered in the inspection hole in the column. 4 - 16 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 65: Glide Pads

    REV B MAST COMPONENTS Glide Pads Lifting Chains Glide pads, used on the GR-12 and GR-15, and How to Adjust the Lifting Chains wear pads, used on the GR-20, are used to 1 Mark the column to be adjusted. provide a uniform fit between the columns as the mast extends and retracts.
  • Page 66 If link plates or pins are bent or deformed, replace entire chain. Replace both chains on that column. Do not repair just the affected portion of the chain. Continued to the next page 4 - 18 GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 67 Cracked Link Plates Visually inspect chain link Cracks in any chain link Replace entire chain. Do plates for cracks. plate. not repair just the affected portion of the chain. Part No. 84700 GR-12 • GR-15 • GR-20 4 - 19...

  • Page 68: Lift Cylinder

    6 Support the cylinder and carefully slide it out of the mast assembly. Crushing hazard. The lift cylinder could become unbalanced and fall if not properly supported when removed from the mast. 4 - 20 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 69: Ground Controls

    1 Tag and disconnect the level sensor wire chassis harness from the chassis wire harness. level sensor 'X' indicator 2 Remove the level sensor adjusting fasteners. mast Remove the level sensor from the machine. Part No. 84700 GR-12 • GR-15 • GR-20 4 - 21...
  • Page 70 2 inches / 5 cm. 6 Tighten the level sensor adjusting fasteners 10 GR-12 and GR-15: Place a 0.65 x 6 x 6 until the bubble in the top of the level sensor is inch / 1.65 x 15 x 15 cm thick steel block under centered in the calibration circles.
  • Page 71 30 Raise the platform approximately 1 foot / 30 cm. 2 inches / 5 cm. Result: The level sensor alarm should not 19 GR-12 and GR-15: Place a 0.79 x 6 x 6 sound. inch / 2 x 15 x 15 cm thick steel block under Result: The level sensor alarm does sound.

  • Page 72: Hydraulic Pump

    3 Turn the key switch to ground control and pull gradually. Do not allow oil to squirt out the red Emergency Stop button to the on or spray. position at both the ground and platform controls. 4 - 24 GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 73 Failure to restore the machine to original factory specifications could cause the machine to tip over, resulting in death or serious injury. Part No. 84700 GR-12 • GR-15 • GR-20 4 - 25...

  • Page 74: Function Manifold

    Solenoid valve, 2 position 4 way ....H ......Platform up ......25 ft-lbs / 34 Nm Relief valve, 3500 psi / 241 bar maximum ..... I ......System relief ......20 ft-lbs / 27 Nm 4 - 26 GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 75 Section 4 • Repair Procedures REV A FUNCTION MANIFOLD Note: 'alpha' callouts refer to corresponding notes on the hydraulic schematic Note: 'alpha-numeric' callouts refer to corresponding notes on the electrical schematic Part No. 84700 GR-12 • GR-15 • GR-20 4 - 27...

  • Page 76: Valve Adjustments - Function Manifold

    10 Install the relief valve cap. pressure gauge to the test port on the function 11 Repeat steps 5 through 7 to confirm the relief manifold (schematic item A). valve pressure. 4 - 28 GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 77 4 Remove the platform controls from the platform. position at both the ground and platform Perform this test from the ground controls. with the platform controls. Do not stand in the platform. Part No. 84700 GR-12 • GR-15 • GR-20 4 - 29...
  • Page 78 (schematic item A) on the cavitating. function manifold. 3 Remove the platform controls from the platform. Perform this test from the ground with the platform controls. Do not stand in the platform. 4 - 30 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 79: Valve Coils

    18 to 21Ω 20V DC with diode (schematic item H) Solenoid valve, 2 position 2 way N.C. 7.5 to 10.5Ω with manual override 12V DC with diode (schematic item N) Part No. 84700 GR-12 • GR-15 • GR-20 4 - 31...
  • Page 80 Section 4 • Repair Procedures November 2005 FUNCTION MANIFOLD REV A How to Test a Coil Diode Genie incorporates spike suppressing diodes in all COIL of its coils. Properly functioning coil diodes protect MULTI METER the electrical circuit by suppressing voltage spikes.

  • Page 81: Hydraulic Tank

    1 Tag, disconnect and plug the hydraulic supply hard line at the pump. Cap the fitting on the pump. Remove the hard line from the tank. Part No. 84700 GR-12 • GR-15 • GR-20 4 - 33...

  • Page 82: Steer Axle Components

    Bodily injury hazard. The could fall if not properly supported. yoke/motor assembly may fall if 6 Remove the wheel castle nut. Remove the not properly supported when wheel. removed from the machine. 4 - 34 GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 83 Drive motor mounting fasteners, dry 75 ft-lbs could fall if not properly supported. 101.7 Nm 6 Remove the wheel castle nut. Remove the Drive motor mounting fasteners, lubricated 56 ft-lbs wheel. 76.3 Nm Part No. 84700 GR-12 • GR-15 • GR-20 4 - 35...

  • Page 84: Steer Cylinder

    Do not allow oil to squirt or spray. Component damage hazard. Hoses can be damaged if they are kinked or pinched. 4 - 36 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 85: Non-Steer Axle Components

    2 inches / 5 cm. Place blocks under the chassis for support. Crushing hazard. The chassis could fall if not properly supported. 6 Remove the wheel castle nut. Remove the wheel. Part No. 84700 GR-12 • GR-15 • GR-20 4 - 37...

  • Page 86: A Brake Release Hand Pump Components

    Hand pump ........J ....Manual brake release ......30 ft-lbs / 41 Nm Needle valve, pilot operated ..... K ....Manual brake release enable ....45-50 in-lbs / 5 Nm Note: 'alpha' callouts refer to corresponding notes on the hydraulic schematic 4 - 38 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 87: Troubleshooting And Repair Procedures Shall Be Completed By A Person Trained And Qualified On The Repair Of This Machine

    Do not allow oil to position at both ground and platform controls squirt or spray. · Wheels chocked · All external AC power supply disconnected from the machine Part No. 84700 GR-12 • GR-15 • GR-20 5 - 1...

  • Page 88: Return To

    The codes listed in the Fault Code Chart still exists describe malfunctions and can aid in troubleshooting the machine by pinpointing the Return to Inspect Perform area or component affected. service and test repair problem solved 5 - 2 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 89: Fault Code Chart

    Series/parallel coil fault. incorrect. DIP switch settings. Low battery voltage. Batteries discharged. Charge batteries. Static strap may be missing ECM has been erased. Replace static strap. from the machine. Part No. 84700 GR-12 • GR-15 • GR-20 5 - 3...
  • Page 90 Section 5 • Fault Codes November 2005 This page intentionally left blank. 5 - 4 GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 91 Be sure that all necessary tools and test equipment are available and ready for use. Malfunction Identify Troubleshoot discovered symptoms problem still exists Return to Inspect Perform service and test repair problem solved Part No. 84700 GR-12 • GR-15 • GR-20 6 - 1...

  • Page 92: Electrical Component And Wire Color Legends

    U27 = 47 mH inductor, noise suppression Valve coil Y3 = Steer right Y4 = Steer left Y5 = Drive reverse Y6 = Drive forward Y7 = Platform down Y8 = Platform up 6 - 2 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 93: Relay Layout And Ecm Pin-Out Legend

    Steer right coil Y3 (output) Parallel coil Y1 (not available on GS-1530/32 and GS-1930/32) Work light L30 (option) Jumper Level sensor signal S7 (input) Down limit switch LS66 (input) Part No. 84700 GR-12 • GR-15 • GR-20 6 - 3...

  • Page 94: Wiring Diagram Ground And Platform Controls

    ECM PIN B12 (UP) TS66 PLATFORM UP/DOWN (DOWN) TOGGLE SWITCH ECM PIN A12 CR48 TERMINAL 30 ECM PIN A11 EMERGENCY STOP PLATFORM CONTROLS JOYSTICK CONTROLLER ALARM EMERGENCY STOP TO COIL CORD 6 - 4 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 95: Electrical Symbols Legend

    Circuit connection Control relay Connector PLATFORM CONTROL SWITCH Fuse GROUND CONTROL Key switch Horn or alarm Hour meter HALL JOYSTICK GENERATOR CONTROLLER Flashing beacon STEER LEFT/ RIGHT FUNCTION ENABLE Joystick Part No. 84700 GR-12 • GR-15 • GR-20 6 - 5...

  • Page 96: Electrical Schematic - Ansi And Csa Models (All Models Without Platform Overload Protection)

    A1 OUT 4-6V BATTERY FLASHING BEACONS MOTOR (OPTION) CONTROLLER INPUT HORN RELAY (H2 OPTION) DC/AC INVERTER (OPTION) STEER STEER DRIVE RIGHT LEFT REVERSE HOUR METER AUTO-STYLE HORN (OPTION) ES0126B 6 - 6 GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 97 FORWARD DOWN PIN3 DRIVE ENABLE BN8 PIN4 LIFT ENABLE BN9 - NOTE - POUT11 PLATFORM MACHINE SHOWN IN THE STOWED ALARM CONTROLLER PIN11 POSITION WITH THE POWER OFF ES0126B Part No. 84700 GR-12 • GR-15 • GR-20 6 - 7...

  • Page 98: Electrical Schematic - Ce Models (All Models With Platform Overload Protection)

    A8 OUT BATTERY ELECTRONIC CONTROL MODULE CHARGER A1 OUT 4-6V BATTERY FLASHING BEACONS MOTOR (OPTION) CONTROLLER INPUT HORN RELAY (H2 OPTION) DC/AC INVERTER (OPTION) HOUR METER AUTO-STYLE HORN (OPTION) ES0127B 6 - 8 GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 99 IN IN ELECTRONIC CONTROL MODULE STEER STEER DRIVE DRIVE PLATFORM PLATFORM RIGHT LEFT REVERSE FORWARD DOWN - NOTE - MACHINE SHOWN IN THE STOWED POSITION WITH THE POWER OFF ES0127B Part No. 84700 GR-12 • GR-15 • GR-20 6 - 9...
  • Page 100 HORN BN5 PIN3 DRIVE ENABLE BN8 PIN4 LIFT ENABLE BN9 POUT11 PLATFORM ALARM CONTROLLER PIN11 - NOTE - MACHINE SHOWN IN THE STOWED POSITION WITH THE POWER OFF ES0127B 6 - 10 GR-12 • GR-15 • GR-20 Part No. 84700...

  • Page 101: A Hydraulic Component Reference And Symbols Legend

    Filter Solenoid operated Priority flow regulator 2 position 2 way Pilot operated directional valve Hand pump needle valve normally closed with manual override Brake manifold Lift cylinder Function manifold Part No. 84700 GR-12 • GR-15 • GR-20 6 - 11...

  • Page 102: Hydraulic Schematic

    3500 psi maximum 241 bar maximum 10 MICRON WITH 4 gpm @ 2500 psi 25 psi / 1.7 bar 15 L/min @ 172 bar BYPASS POWER UNIT HYDRAULIC TANK HS0039A 6 - 12 GR-12 • GR-15 • GR-20 Part No. 84700...
  • Page 103 Genie North America Phone 425.881.1800 Toll Free USA and Canada 800.536.1800 425.883.3475 Genie Australia Pty Ltd. Phone + 61 7 3375 1660 Fax + 61 7 3375 1002 Genie China Genie Scandinavia Phone + 86 21 53852570 Phone + 46 31 575100...
  • Page 104 Part No. 84700 Rev B...

This manual is also suitable for:

Gr-15Gr-20Gr05-5001

Table of Contents