GT- Logic 4 Installation Manual
Page 2
... the Photoelectric Sensors (Provided 21 Mount the Photoelectric Sensors (Provided 22 Wire the LiftMaster Monitored Entrapment Protection (LMEP) Devices 22 ADJUSTMENT 23-24 Limit Adjustment 23 Clutch Adjustment (Belt Drive Model Operators 24 TESTING 25 MANUAL RELEASE 26-27 Emergency Disconnect System... Model GT and T 26 Emergency Disconnect System Model APT 26 Emergency Disconnect System Model H, GH, J, and HJ...
... the Photoelectric Sensors (Provided 21 Mount the Photoelectric Sensors (Provided 22 Wire the LiftMaster Monitored Entrapment Protection (LMEP) Devices 22 ADJUSTMENT 23-24 Limit Adjustment 23 Clutch Adjustment (Belt Drive Model Operators 24 TESTING 25 MANUAL RELEASE 26-27 Emergency Disconnect System... Model GT and T 26 Emergency Disconnect System Model APT 26 Emergency Disconnect System Model H, GH, J, and HJ...
GT- Logic 4 Installation Manual
Page 5
...oil-bath speed reducer Output: #41 chain OUTPUT SHAFT SPEED: Model APT 96 RPM Model GT 113.5 RPM Model T 140 RPM DOOR SPEED (not adjustable): Model APT 6-7" per second Model GT 11-12" per second Model T 11-12" per second BRAKE: Solenoid actuated disc brake on 3/4 and... 1 HP, standard on Model GT (Available as an option for 1/3 and 1/2 HP) BEARINGS Output Shaft: Shielded ball bearing Model APT and T. . . .Clutch Shaft: IronCopper sintered and oil impregnated MAXIMUM DOOR AREA (SQ. Steel Insul. 150 --- --- 16 ga. Trolley FT.) STANDARD SECTIONAL MODEL T --- Fiberglass Doors 24 ga...
...oil-bath speed reducer Output: #41 chain OUTPUT SHAFT SPEED: Model APT 96 RPM Model GT 113.5 RPM Model T 140 RPM DOOR SPEED (not adjustable): Model APT 6-7" per second Model GT 11-12" per second Model T 11-12" per second BRAKE: Solenoid actuated disc brake on 3/4 and... 1 HP, standard on Model GT (Available as an option for 1/3 and 1/2 HP) BEARINGS Output Shaft: Shielded ball bearing Model APT and T. . . .Clutch Shaft: IronCopper sintered and oil impregnated MAXIMUM DOOR AREA (SQ. Steel Insul. 150 --- --- 16 ga. Trolley FT.) STANDARD SECTIONAL MODEL T --- Fiberglass Doors 24 ga...
GT- Logic 4 Installation Manual
Page 24
... removing the centrifugal switch on single phase motors, the leading cause of safety devices for primary safety protection. Clutch adjustment 24 LOSE OPEN RPM Sensor Logic Board Back off torque nut until there is very little tension on the... screws on models GH and GT.) NOTE: This feature is automatically learned and does not require programming. We require the use of motor failures is eliminated. (Auxiliary Reversal System not applicable on clutch nut. When the clutch is properly adjusted, it should generally be properly adjusted). WARNING WARNING C(...
... removing the centrifugal switch on single phase motors, the leading cause of safety devices for primary safety protection. Clutch adjustment 24 LOSE OPEN RPM Sensor Logic Board Back off torque nut until there is very little tension on the... screws on models GH and GT.) NOTE: This feature is automatically learned and does not require programming. We require the use of motor failures is eliminated. (Auxiliary Reversal System not applicable on clutch nut. When the clutch is properly adjusted, it should generally be properly adjusted). WARNING WARNING C(...
GT- Logic 4 Installation Manual
Page 36
... board. 4. Bearings and Shafts LiftMaster Monitored Entrapment Protection (LMEP) Check for every 3 months. 6. Call our TOLL FREE number: 1-800-528-2806 www.liftmaster.com LIFAEDOVFEORPETREATNOCRIFAEATURE (ODOMETER/CYCLE COUNATEDR)VERTENCIA The operator is adjusted at the intervals listed in the... 5,000 cycles and CLOSE for wear and lubricate. NOTE: Your operator may look different than the operator shown. Clutch Check and adjust as installed. screw tightness. Manual Disconnect Check and operate. PRECAUCIÓN 1. ITEM PROCEDURE Drive Chain Check for continuous...
... board. 4. Bearings and Shafts LiftMaster Monitored Entrapment Protection (LMEP) Check for every 3 months. 6. Call our TOLL FREE number: 1-800-528-2806 www.liftmaster.com LIFAEDOVFEORPETREATNOCRIFAEATURE (ODOMETER/CYCLE COUNATEDR)VERTENCIA The operator is adjusted at the intervals listed in the... 5,000 cycles and CLOSE for wear and lubricate. NOTE: Your operator may look different than the operator shown. Clutch Check and adjust as installed. screw tightness. Manual Disconnect Check and operate. PRECAUCIÓN 1. ITEM PROCEDURE Drive Chain Check for continuous...
GT- Logic 4 Installation Manual
Page 38
.... Check for a failure after each one at a time testing for foreign matter blocking optical lens. ➤ Replace RPM sensor. ➤ Adjust clutch and verify that the direct BUTTON connect photoelectric sensors are misaligned or not connected. OR reset the factory defaults (page 35). Return dial to ...is hot. Green LED next to move in the corresponding direction. Allow motor to cool before attempting to stop button must be replaced b) Clutch slipping ➤ Check the RPM assembly for 5 seconds. THE DOOR WILL MOVE The Maximum Run Timer is not connected properly or may...
.... Check for a failure after each one at a time testing for foreign matter blocking optical lens. ➤ Replace RPM sensor. ➤ Adjust clutch and verify that the direct BUTTON connect photoelectric sensors are misaligned or not connected. OR reset the factory defaults (page 35). Return dial to ...is hot. Green LED next to move in the corresponding direction. Allow motor to cool before attempting to stop button must be replaced b) Clutch slipping ➤ Check the RPM assembly for 5 seconds. THE DOOR WILL MOVE The Maximum Run Timer is not connected properly or may...
GT- Logic 4 Installation Manual
Page 39
... and press the OPEN button. TROUBLESHOOTING ERROR CODES Logic 4.0 operators incorporate a self diagnostic feature built into option card receptacles LiftMaster Monitored Entrapment Protection (LMEP) device faulted or removed for greater than one error at invalid time movement 10 blinks Motor Phase...the next highest will reverse to change 1. TROUBLESHOOTING NOTE: Error codes take priority over normal MAS LED operation. It is slipping, adjust clutch, or verify RPM sensor connection or replace RPM sensor. NOTE: To relearn the RPM sensor, move phase jumper to OPEN position ...
... and press the OPEN button. TROUBLESHOOTING ERROR CODES Logic 4.0 operators incorporate a self diagnostic feature built into option card receptacles LiftMaster Monitored Entrapment Protection (LMEP) device faulted or removed for greater than one error at invalid time movement 10 blinks Motor Phase...the next highest will reverse to change 1. TROUBLESHOOTING NOTE: Error codes take priority over normal MAS LED operation. It is slipping, adjust clutch, or verify RPM sensor connection or replace RPM sensor. NOTE: To relearn the RPM sensor, move phase jumper to OPEN position ...
GH LOGIC VERSION 2 Manual
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... safety instructions. PACKING LIST K77-14334 PART # 14-10896 19-10929-29 77-11090 19-50106M 02-103L DESCRIPTION GH PARTS BOX 29 FT HAND CHAIN GH PARTS BAG # 50 CHAIN, 106 PITCH 3 BUTTON CONTROL STATION QTY 1 1 1 1 1 2 Before attempting to... Wiring 9 Ground Wiring 9 Control Station Wiring 9 Radio Controls 9 Mounting Instructions 9 Optional Control Mounting 9 Optional Control Wiring 28 CLUTCH ADJUSTMENT Clutch Parts 10 Clutch Adjustment 10 BRAKE ADJUSTMENT Brake Parts 10 WIRING DIAGRAMS 1 PH Wiring 11 3 PH Wiring 12 1 PH Wiring w/Contactor 13 STANDARD PROGRAMMING Wiring Type 14...
... safety instructions. PACKING LIST K77-14334 PART # 14-10896 19-10929-29 77-11090 19-50106M 02-103L DESCRIPTION GH PARTS BOX 29 FT HAND CHAIN GH PARTS BAG # 50 CHAIN, 106 PITCH 3 BUTTON CONTROL STATION QTY 1 1 1 1 1 2 Before attempting to... Wiring 9 Ground Wiring 9 Control Station Wiring 9 Radio Controls 9 Mounting Instructions 9 Optional Control Mounting 9 Optional Control Wiring 28 CLUTCH ADJUSTMENT Clutch Parts 10 Clutch Adjustment 10 BRAKE ADJUSTMENT Brake Parts 10 WIRING DIAGRAMS 1 PH Wiring 11 3 PH Wiring 12 1 PH Wiring w/Contactor 13 STANDARD PROGRAMMING Wiring Type 14...
GH LOGIC VERSION 2 Manual
Page 3
... x 1/4" Key for 1/2 thru 2Hp operators, 1-1/4" x 1/4" Key for 1/2 thru 2Hp operators X = 7-17/32"; LIMIT ADJUST Linear driven, fully adjustable screw type cams. Adjustable to provide non-contact safety protection. depending on door BRAKE Solenoid actuated disc brake HOIST WHEEL Standard mounting on left or right... side SAFETY DISCONNECT Floor level chain hoist with electrical interlock for emergency manual door operation CLUTCH: (Optional) ....Adjustable torque limiter type SAFETY PHOTO EYES: (Optional) Thru beam or retro reflective devices used to 30 feet. Y ...
... x 1/4" Key for 1/2 thru 2Hp operators, 1-1/4" x 1/4" Key for 1/2 thru 2Hp operators X = 7-17/32"; LIMIT ADJUST Linear driven, fully adjustable screw type cams. Adjustable to provide non-contact safety protection. depending on door BRAKE Solenoid actuated disc brake HOIST WHEEL Standard mounting on left or right... side SAFETY DISCONNECT Floor level chain hoist with electrical interlock for emergency manual door operation CLUTCH: (Optional) ....Adjustable torque limiter type SAFETY PHOTO EYES: (Optional) Thru beam or retro reflective devices used to 30 feet. Y ...
GH LOGIC VERSION 2 Manual
Page 10
... device. WARNING CAUTION: The torque limiter clutch is properly adjusted, it should generally adjusted, it should not need additional adjustment for the the life of components for identification of the friction pad. Replace friction pads when necessary. ADJUST TORQUE LIMITER CLUTCH (OPTIONAL MODIFICATION) 1. A Reversing Device... TO AVOID SERIOUS PERSONAL INJURY OR DEATH FROM ELECTROCUTION, DISCONNECT ELECTRIC POWER TO OPERATOR BEFORE ADJUSTING SLIP CLUTCH. Solenoid Brake System Plate Assembly Release Lever Friction Pads Solenoid Actuator Plate 10 Loosen set screws on the...
... device. WARNING CAUTION: The torque limiter clutch is properly adjusted, it should generally adjusted, it should not need additional adjustment for the the life of components for identification of the friction pad. Replace friction pads when necessary. ADJUST TORQUE LIMITER CLUTCH (OPTIONAL MODIFICATION) 1. A Reversing Device... TO AVOID SERIOUS PERSONAL INJURY OR DEATH FROM ELECTROCUTION, DISCONNECT ELECTRIC POWER TO OPERATOR BEFORE ADJUSTING SLIP CLUTCH. Solenoid Brake System Plate Assembly Release Lever Friction Pads Solenoid Actuator Plate 10 Loosen set screws on the...
GH LOGIC VERSION 2 Manual
Page 16
... programmed, it will run in one direction for 90 seconds total in most cases without adjusting the RPM sensor. You should see the Learn LED turn off position. 3. Installer can adjust the 90 second timer to "set Max Run Timer". 3. Set the dip switches to...1. Maximum Run Timer (Setting is ever replaced. The Maximum Run Timer is eliminated. Benefit: By removing the centrifugal start winding and recognizes clutch slippage. Note: LiftMaster 2.0 Logic operators are designed to drive into the obstruction. Press open then press and hold the "learn" button on about ⁄...
... programmed, it will run in one direction for 90 seconds total in most cases without adjusting the RPM sensor. You should see the Learn LED turn off position. 3. Installer can adjust the 90 second timer to "set Max Run Timer". 3. Set the dip switches to...1. Maximum Run Timer (Setting is ever replaced. The Maximum Run Timer is eliminated. Benefit: By removing the centrifugal start winding and recognizes clutch slippage. Note: LiftMaster 2.0 Logic operators are designed to drive into the obstruction. Press open then press and hold the "learn" button on about ⁄...
GH LOGIC VERSION 2 Manual
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Lubricate Check set screw tightness Clutch Check & adjust as required Belt Check condition & tension Fasteners Check ...-2806 MONDAY THROUGH FRIDAY 5 AM TO 6 PM (MST) SATURDAY 7 AM TO 3:30 PM (MST) WWW.LIFTMASTER.COM WHEN ORDERING REPAIR PARTS PLEASE SUPPLY THE FOLLOWING INFORMATION: PART NUMBER DESCRIPTION MODEL NUMBER 22 Inspect and service whenever ...chart. ITEM PROCEDURE EVERY 3 MONTHS OR 5,000 CYCLES Drive Chain Sprockets Check for continuous operation. Check & adjust as required Manual Disconnect Check & Operate Bearings & Shafts Check for wear & Lubricate EVERY 6 MONTHS OR ...
Lubricate Check set screw tightness Clutch Check & adjust as required Belt Check condition & tension Fasteners Check ...-2806 MONDAY THROUGH FRIDAY 5 AM TO 6 PM (MST) SATURDAY 7 AM TO 3:30 PM (MST) WWW.LIFTMASTER.COM WHEN ORDERING REPAIR PARTS PLEASE SUPPLY THE FOLLOWING INFORMATION: PART NUMBER DESCRIPTION MODEL NUMBER 22 Inspect and service whenever ...chart. ITEM PROCEDURE EVERY 3 MONTHS OR 5,000 CYCLES Drive Chain Sprockets Check for continuous operation. Check & adjust as required Manual Disconnect Check & Operate Bearings & Shafts Check for wear & Lubricate EVERY 6 MONTHS OR ...
GH LOGIC 3 Manual
Page 2
... Hand Chain Right/Left Conversion 5 Disconnect Lever Right/Left Conversion 5 Horizontal Mounting Conversion 5 INSTALLATION Mount the Operator 6 Manual Operation 7 Entrapment Protection Accessories 8 ADJUSTMENT Limit Switch Adjustment 8 Adjust Torque Limiter Clutch 9 Brake Adjustment 9 POWER & GROUND WIRING Safety Warnings 10 Power Wiring Connections 10 Ground Wiring Connections 10 CONTROL STATION WIRING & INSTALLATION Control Wiring Connections 11 Mounting...
... Hand Chain Right/Left Conversion 5 Disconnect Lever Right/Left Conversion 5 Horizontal Mounting Conversion 5 INSTALLATION Mount the Operator 6 Manual Operation 7 Entrapment Protection Accessories 8 ADJUSTMENT Limit Switch Adjustment 8 Adjust Torque Limiter Clutch 9 Brake Adjustment 9 POWER & GROUND WIRING Safety Warnings 10 Power Wiring Connections 10 Ground Wiring Connections 10 CONTROL STATION WIRING & INSTALLATION Control Wiring Connections 11 Mounting...
GH LOGIC 3 Manual
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LIMIT ADJUST Linear driven, fully adjustable screw type cams MECHANICAL DRIVE REDUCTION 45:1 for 1/2, 3/4, and 1 HP 44:1 for 1-1/2, 2 42:1 for 3 HP OUTPUT SHAFT SPEED 38.3 for 1/2, 3/4, and 1 HP 39.2 for 1-1/2 and 2 ... actuated disc brake HOIST WHEEL Standard mounting on left or right side SAFETY DISCONNECT Floor level chain hoist with electrical interlock for manual door operation CLUTCH (Optional Adjustable torque limiter type SAFETY PHOTO EYES (Optional CPS-L): Through beam or retro reflective devices used to provide non-contact safety protection SAFETY EDGE (Optional...
LIMIT ADJUST Linear driven, fully adjustable screw type cams MECHANICAL DRIVE REDUCTION 45:1 for 1/2, 3/4, and 1 HP 44:1 for 1-1/2, 2 42:1 for 3 HP OUTPUT SHAFT SPEED 38.3 for 1/2, 3/4, and 1 HP 39.2 for 1-1/2 and 2 ... actuated disc brake HOIST WHEEL Standard mounting on left or right side SAFETY DISCONNECT Floor level chain hoist with electrical interlock for manual door operation CLUTCH (Optional Adjustable torque limiter type SAFETY PHOTO EYES (Optional CPS-L): Through beam or retro reflective devices used to provide non-contact safety protection SAFETY EDGE (Optional...
GH LOGIC 3 Manual
Page 9
...Actuator Plate 9 Refer to slip if the door is very little tension on clutch nut. 2. When the clutch is properly adjusted, it should generally be possible to stop the door by hand during travel. (3) Set Screws BRAKE ADJUSTMENT The brake is just enough tension to permit the operator to move the ...door smoothly but to allow the clutch to the illustration for identification of components for the life of the brake assembly. ...
...Actuator Plate 9 Refer to slip if the door is very little tension on clutch nut. 2. When the clutch is properly adjusted, it should generally be possible to stop the door by hand during travel. (3) Set Screws BRAKE ADJUSTMENT The brake is just enough tension to permit the operator to move the ...door smoothly but to allow the clutch to the illustration for identification of components for the life of the brake assembly. ...
GH LOGIC 3 Manual
Page 23
.... LOSE OPEN RPM Sensor Logic Board MAXIMUM RUN TIMER (MRT) Feature: The operator can learn the time it will vary depending on models GH and GT.) NOTE: This feature is automatically learned and does not require programming. Start with the door in the closed position. 2. In addition... the RPM sensor connected to the logic board to detect when the clutch slips and reverses the door (clutch must be manually learned for a longer duration follow steps below. 1. In the event the application requires the MRT be properly adjusted). Turn dial to "PROGRAM". 3. NOTE: To reset MRT only,...
.... LOSE OPEN RPM Sensor Logic Board MAXIMUM RUN TIMER (MRT) Feature: The operator can learn the time it will vary depending on models GH and GT.) NOTE: This feature is automatically learned and does not require programming. Start with the door in the closed position. 2. In addition... the RPM sensor connected to the logic board to detect when the clutch slips and reverses the door (clutch must be manually learned for a longer duration follow steps below. 1. In the event the application requires the MRT be properly adjusted). Turn dial to "PROGRAM". 3. NOTE: To reset MRT only,...
GH LOGIC 3 Manual
Page 25
... operator has not reached 5,000 cycles or 3 months, there will flash. Check and adjust as required. Check for wear and lubricate. OPEN for every 5,000 cycles and CLOSE ... how long the operator has been in the following chart: ITEM Drive Chain Sprockets Clutch Belt Fasteners Manual Disconnect Bearings and Shafts Safety Reversing Sensors PROCEDURE Check for every 3... The operator is observed or suspected. Call our TOLL FREE number: 1-800-528-2806 www.liftmaster.com Motor bearings are available. Check at the intervals listed in service. 1. MAINTENANCE MAINTENANCE SCHEDULE...
... operator has not reached 5,000 cycles or 3 months, there will flash. Check and adjust as required. Check for wear and lubricate. OPEN for every 5,000 cycles and CLOSE ... how long the operator has been in the following chart: ITEM Drive Chain Sprockets Clutch Belt Fasteners Manual Disconnect Bearings and Shafts Safety Reversing Sensors PROCEDURE Check for every 3... The operator is observed or suspected. Call our TOLL FREE number: 1-800-528-2806 www.liftmaster.com Motor bearings are available. Check at the intervals listed in service. 1. MAINTENANCE MAINTENANCE SCHEDULE...
GH LOGIC 3 Manual
Page 28
... relays and the drive circuitry to be more than 2 minutes. E8 Brownout Detected. To many errors currently exist, turn the selector dial to 2 blinks Clutch is slipping, adjust clutch, or opening or closing . There may be unstuck before Time timed out. If the MAS LED is due. position. E5 Stuck key button pressed...
... relays and the drive circuitry to be more than 2 minutes. E8 Brownout Detected. To many errors currently exist, turn the selector dial to 2 blinks Clutch is slipping, adjust clutch, or opening or closing . There may be unstuck before Time timed out. If the MAS LED is due. position. E5 Stuck key button pressed...
GH -Mechanical New style w/ thermal overload change Manual
Page 2
... 5 Horizontal Mounting Conversion 5 INSTALLATION Mount the Operator 6 Manual Operation 7 Entrapment Protection Accessories 8 ADJUSTMENT Adjust Torque Limiter Clutch 9 Brake Adjustment 9 POWER WIRING Power Wiring Connections 10 CONTROL WIRING Determine Wiring Type 11 Special Control Wiring 11 ...do not comply with the warnings that accompany it. WARNING AVERTISSEMENT AAAVVTEETRRETTNIISSTISSOEENMMEENNTT 2 AAVVEERRTTIISSSSEEMMEENNTT Model GH 22 Model GH 23 Control Connection Diagram 24 WARNING Mechanical CAWWUAATRRIONNNIINNGG Electrical CAWUATRIONNING When you see this manual ...
... 5 Horizontal Mounting Conversion 5 INSTALLATION Mount the Operator 6 Manual Operation 7 Entrapment Protection Accessories 8 ADJUSTMENT Adjust Torque Limiter Clutch 9 Brake Adjustment 9 POWER WIRING Power Wiring Connections 10 CONTROL WIRING Determine Wiring Type 11 Special Control Wiring 11 ...do not comply with the warnings that accompany it. WARNING AVERTISSEMENT AAAVVTEETRRETTNIISSTISSOEENMMEENNTT 2 AAVVEERRTTIISSSSEEMMEENNTT Model GH 22 Model GH 23 Control Connection Diagram 24 WARNING Mechanical CAWWUAATRRIONNNIINNGG Electrical CAWUATRIONNING When you see this manual ...
GH -Mechanical New style w/ thermal overload change Manual
Page 4
See chart, page 8) LIMIT ADJST: Linear driven, fully adjustable screw type cams. MECHANICAL DRIVE REDUCTION 40:1 Reduction Heavy duty bronze worm gear reducer OUTPUT SHAFT SPEED 43 RPM DOOR SPEED 4-10" per ... sensing device to reverse and auxiliary devices to the bottom edge of door. 4 Electric or pneumatic sensing device attached to open override. (Other types available. CLUTCH: (Optional Adjustable torque limiter type REVERSING EDGE (Optional): . . . OPERATOR SPECIFICATIONS MOTOR TYPE Continuous Duty HORSEPOWER 1/2, 3/4 or 1-1/2 HP 1 or 3 phase 2 HP 3 phase SPEED 1725 RPM ...
See chart, page 8) LIMIT ADJST: Linear driven, fully adjustable screw type cams. MECHANICAL DRIVE REDUCTION 40:1 Reduction Heavy duty bronze worm gear reducer OUTPUT SHAFT SPEED 43 RPM DOOR SPEED 4-10" per ... sensing device to reverse and auxiliary devices to the bottom edge of door. 4 Electric or pneumatic sensing device attached to open override. (Other types available. CLUTCH: (Optional Adjustable torque limiter type REVERSING EDGE (Optional): . . . OPERATOR SPECIFICATIONS MOTOR TYPE Continuous Duty HORSEPOWER 1/2, 3/4 or 1-1/2 HP 1 or 3 phase 2 HP 3 phase SPEED 1725 RPM ...
GH-MECHANICAL Manual
Page 9
... on the outside of the door from the control devices. CLUTCH ADJUSTMENT (OPTIONAL MODIFICATION) 1. An electric or pneumatic reversing edge can be possible to slip if the door is properly adjusted, it should generally adjusted, it should generally be added to this manner. However, ...TO AVOID SERIOUS PERSONAL INJURY OR DEATH FROM ELECTROCUTION, DISCONNECT ELECTRIC POWER TO OPERATOR BEFORE ADJUSTING SLIP CLUTCH. CAUTION WARNING 9 CAUTION: The torque limiter clutch is very little tension on clutch nut. 2. THE USE OF RADIO CONTROLS PRESENTS POTENTIAL HAZARDS DUE TO THE USER'S ...
... on the outside of the door from the control devices. CLUTCH ADJUSTMENT (OPTIONAL MODIFICATION) 1. An electric or pneumatic reversing edge can be possible to slip if the door is properly adjusted, it should generally adjusted, it should generally be added to this manner. However, ...TO AVOID SERIOUS PERSONAL INJURY OR DEATH FROM ELECTROCUTION, DISCONNECT ELECTRIC POWER TO OPERATOR BEFORE ADJUSTING SLIP CLUTCH. CAUTION WARNING 9 CAUTION: The torque limiter clutch is very little tension on clutch nut. 2. THE USE OF RADIO CONTROLS PRESENTS POTENTIAL HAZARDS DUE TO THE USER'S ...