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Dinasaw T-REX Instruction Manual

Automatic chain sharpener
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T-REX
Automatic Chain Sharpener
INSTRUCTION MANUAL
VERSION 8.0

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Summary of Contents for Dinasaw T-REX

  • Page 1 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL VERSION 8.0...
  • Page 2 Equipment. © Copyright DinaSaw Pty Ltd. The copyright for this product and instruction manual is held by DinaSaw Pty Ltd. Any technical specifications, or illustrations part of this manual cannot be reproduced, used illicitly or distributed in any form for competitive purposes.

  • Page 3: Table Of Contents

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Table of Contents Page Check List Installation Wall/Bench Mounting Assembling the Tri-Pod stand (Optional) Bench mounting Operational Overview The Control Panel Removing Shipping & Allignment Brace Assembling the Machine Adjustments Fitting the Grinding Wheel...
  • Page 4 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Table of Contents How to check the Cam Timing Leaving the machine for extended periods Warning! Grinding is dangerous. You should become thoroughly familiar with the information supplied in this manual before operating this machine.

  • Page 5: Check List

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Check List Standard T-Rex accessory bag: Standard T-Rex accessory bag: 1 x Instruction USB 1 x Instruction Manual 1 x 10/13mm Spanner 2 x 5mm Spring Washers 1 x 2.5mm Hex Key 2 x M5 x 10 Pan Head Screws...

  • Page 6: Installation

    Power Requirements: The Dinasaw Chainsaw Sharpener can operate from a well charged automotive battery as well as a suitable regulated switch mode power supply. It is important however that the lead from the battery / power supply to the machine is no longer than 2 meters (6 feet).

  • Page 7: Wall/Bench Mounting

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Wall / Bench Mounting...
  • Page 8 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Machine attached to wall bracket. Cutter Terminilogy:...

  • Page 9: Assembling The Tri-Pod Stand (Optional)

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Assembling the Tri-Pod Stand (optional) Do not over tighten the screws in the legs as damage to the screws may occur.
  • Page 10 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Fit the machine onto the support frame and tighten securely. See fig 2. Adjust the legs so that the machine sits level on the support frame. Large harvester chains may require the machine to be tilted back slightly to prevent the chain from catching on the rear plate of the machine.

  • Page 11: Bench Mounting

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Bench Mounting the Machine (Brackets not supplied)

  • Page 12: Operational Overview

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Overview of Operation The T-Rex uses cams to operate the feed, clamp and grinding head. The “Grind Cam” raises and lowers the grinding head while the “Feed Cam” both indexes and clamps the cutters.
  • Page 13 3. Centring the grinding head. 4. Chain Clamp. Limitations 1. The T-Rex model cannot automatically sharpen chains with three or more cutters in a row on the same side of the chain. Two is the maximum. 2. Chains with three or more tie links in one section of the chain must be stopped at this point with the magnet, as the feed stroke will not cope with more than two tie links.

  • Page 14: The Control Panel

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL The Control Panel Power indicator light: Power indicator light: • Indicates that power is on. Function indicator light: Function indicator light: • When in “Run Mode” light is on. • When magnet is detected light will go out momentarily.
  • Page 15 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Grinder: Grinder: • Turns the grinder motor on - press again stops motor. Inch Fwd: Inch Fwd: • “Inches” machine forward when not in run mode. Inch Rev: Inch Rev: • “Inches” machine in reverse when not in run mode.

  • Page 16: Removing Shipping & Allignment Brace

    T-REX Automatic Chain Sharpener 04. Operation INSTRUCTION MANUAL Removing Shipping & Allignment Brace • Pull directly upwards to remove the brace on the top of the body. • Using a small flat screw driver, gently pry this brace away from the side plate and remove.
  • Page 17 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL • Remove the cable tie from the • Remove both M3 nuts on cover plate. • Attach the cover plate to the motor arm with screws on reverse side of plate. • Connect power cords between motor and arm.

  • Page 18: Assembling The Machine

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Assembling the machine • Connect the AC lead to the power supply. • Check the voltage selection switch. • Failure to correctly set this switch will destroy the unit and void the warranty. • Connect the output of the power supply to the machine.
  • Page 19 T-REX Automatic Chain Sharpener 04. Operation INSTRUCTION MANUAL • Carefully tilt the motor arm fully back until the latch engages. • Press and hold the ‘COUNT’ button and press the ‘Inch Fwd’ button, then release both buttons. • This will force the machine to run to the position for setting the LEFT side angle.
  • Page 20 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL • Lower the arm. • Rotate the motor to the desired angle on the LEFT side and tighten the bolt with the 6mm hex key. • Connect the wires. • Press and hold the ‘COUNT’ Button and press the “Inch Rev’ Button, then release both Buttons.
  • Page 21 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL • Insert the 4mm hex key into the end of the motor arm and turn until the indicator shows the exact same angle on the right side. • Turn Clockwise initially. • Attach the protection Shield.

  • Page 22: Adjustments

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Adjustments The diagram below shows the main adjustment positions on the machine. 1. Grind Depth Adjuster Sets the grinding depth. 2. Grind Head Centring Adj Centres the grind head on the chain. 3. Feed Pawl Height Adjuster Sets the feed pawl height to suit the chain pitch.

  • Page 23: Fitting The Grinding Wheel

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Fitting the Grinding Wheel...

  • Page 24: Dressing The Grinding Wheel

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Dressing and Truing the Grinding wheel Caution! Grinding wheels may shatter causing injury. Grinding dust has been associated with respiratory disease. Preferably use ABN / CBN wheels and wear a suitable dust mask. Resin bond Grinding Wheels •...
  • Page 25 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Caution! It is prudent not to trust the integrity of a newly fitted, bonded grinding wheel - run for at least one minute before dressing the wheel to the required shape.
  • Page 26 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Warning! Grinding is dangerous. Damaged or cracked grinding wheels can shatter causing injury to the operator. Do not operate the machine without guards in place and always wear face and breathing protection. True and dress the grinding...

  • Page 27: Fitting The Chain

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Fitting the Chain Important: The chain clamp must be adjusted so that pressure is only applied when the cutter is in the fully forward position. Before fitting, ensure the clamp is backed off sufficiently when changing from small to large chains.

  • Page 28: Adjusting The Clamp Opening

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Adjusting the chain clamp opening width When sharpening .043” chain it may be necessary to reduce the opening of the clamp to prevent the chain from falling into the clamp. The same opening setting can be used for chain up to .067” .
  • Page 29 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL With the motor arm still latched in the upright position, loosen the chain clamp one full turn. Fit the chain into the chain guide as shown below. Press the button combination “COUNT”+”INCH FWD” . This will run the machine until the feed mechanism is in the fully forward position and the chain clamp is on.
  • Page 30 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Changing the Feed Motor Fuse. The machine is fitted with a fuse to protect the mechanism from damage if excessive pressure is applied to the chain clamp. If excessive pressure is applied and the machine will no longer feed the chain, follow the procedure below.

  • Page 31: Feed Stroke & Pawl Height Adjustments

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Adjusting the Feed Stroke and Pawl Height. Using the Inch Fwd button, Inch machine until feed pawl is all the way back and adjust the feed stroke adjuster until the feed pusher plate is positioned just in front of the depth gauge.
  • Page 32 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Press ‘INCH FWD’ and take note of the ‘Feed Pusher Plate’ as it approaches the cutter. It must not contact the tie links of the chain as it may push from this point instead of the back of the cutter.

  • Page 33: Operating Modes

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Note: Sharpening chains with the extra tie link requires the stroke to be set acurately to prevent the feed finger jumping behind and engaging the depth gauge. The “Auto Detect” cutter sensor will not detect the following cutter if an additional tie link is present.

  • Page 34: Auto Cutter Sensor Setup

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL ‘AUTO’ Mode Setup This mode uses sensors to determine if there are two cutters in a row on the same side of the chain. This mode uses a sensor to “look” at the cutter and determine what hand it is.
  • Page 35 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Loosen the Sensor Clamp Bracket Screw and slide the sensor toward the cutter. Position the sensor approximately 1-2mm from the cutter. Both LED’s (end of sensor & top of feed arm) should be LIGHTS INDICATE...
  • Page 36 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Press and hold the ‘COUNT’ Button and press the “Inch Fwd’ Button, then release both Buttons. Check that the Grinding head and the cutter are angled the same way. If they are not, press ‘INCH REV’ until the feed pawl travels back over the following cutter then press “INCH FWD’...

  • Page 37: 'Magnet' Mode Setup

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL ‘MAGNET’ Mode Setup Use this mode if the chain is damaged and ‘AUTO’ mode cannot be used. This mode uses a magnet placed on the first rivet of a cutter on the chain to force the machine to reposition itself for grinding two cutters on the same side of the chain.

  • Page 38: Magnet Positioning For Sensing

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Magnet Positioning for Counting. Place the magnet supplied onto the chain as shown in fig. below. Do not place the magnet on a tie link (link between cutters) as the machine will not function correctly.

  • Page 39: Adjusting The Length Of The Cutters

    T-REX Automatic Chain Sharpener 05. Service and Repair INSTRUCTION MANUAL Grinding the Cutters the same length. • For a chain to perform at its optimum, it is crucial the cutters are the same length. • After grinding the cutters, measure the length of one cutter on each side.
  • Page 40 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Adjusting the amount of material to remove It is only possible to adjust the cutter while the chain is not clamped. IE: When the feed arm is in the return position. See picture below.
  • Page 41 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL The following section deals with altering the settings from standard.

  • Page 42: Adjusting How Much To Grind

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Adjusting the amount of material to remove 1. Loosen the 8mm retaining nut. 2. Rotate the chain guide to the desired position. 3. Retighten the 8mm retaining nut. • Remove the two screws from the top cover and remove top cover.

  • Page 43: Changing The Top Plate Angle

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Changing the Top Plate Angles • Press and hold the ‘COUNT’ Button and press the “Inch Fwd’ Button, then release both Buttons. • Loosen the bolt and set the LEFT angle to the desired angle (30°...

  • Page 44: "0" Degree Top Plate Angle

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL “0” Degree Top Plate Angle • Press and hold the ‘COUNT’ Button and press the “Inch Fwd’ Button, then release both Buttons. • Loosen the head clamp bolt and rotate head to the triangular mark as shown.
  • Page 45 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL • Insert the 4mm hex key into the end of the motor arm and turn until the indicator points to 0°. To reset the grinding head angle after it has been set to “0”...

  • Page 46: How To Grind The Depth Gauges

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL GRINDING the DEPTH GAUGES Set the grinding head angle for “0” degrees as described earlier. Replace or redress the grinding wheel so that the edge of the wheel suits the shape of the depth gauge.

  • Page 47: Chains With Double Tie Links

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Chains with Double Tie Links Chains with both two tie links and an out of sequence cutter require the machine to be operated in magnet mode. Adjust the feed limiting screw so that the feed pawl returns far enough to push the cutter after the double join and place the magnet on the chain as described earlier.

  • Page 48: Safety Chain

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Safety Chains Chains with this type of safety link require the feed pawl stroke to be limited so that it does not push the ridges on top of the safety link. If the chain has 2 or more tie links, the machine has to be stopped before the join.

  • Page 49: 3/4" Harvester Chain

    T-REX Automatic Chain Sharpener INSTRUCTION MANUAL 3/4” Harvester Chain Changing the machine to grind 3/4” harvester chain requires the following adjustments. Remove the chain guide plate and place 3 washers on each stud. Add one washer to the centre stud.
  • Page 50 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Remove Feed Stop Arm. Note: Partially assembled machine shown in photo Attach Cutter Sensor as shown. Place magnet below pin on chain. Magnet must be no more than 5mm (3/16”) away from proximity switch.
  • Page 51 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Checking the Cam Timing This will only be required after disassembly. Inch the machine forward until the feed pawl has reached its furthermost forward point. View the timing marks through the cut-outs in the rear plate and ensure all three gears are timed correctly as shown below.
  • Page 52 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL Leaving the Machine for Extended Periods When the machine is not in use (i.e.: overnight, vacations etc.), always leave the machine with the bevel cam follower on the lowest section of the bevel cam.
  • Page 53 T-REX Automatic Chain Sharpener INSTRUCTION MANUAL...
  • Page 54 DinaSaw Pty Ltd Unit 3/11 Hinkler Ct, Brendale QLD 4500, Australia +61 (0)7 5491 4999 sales@dinasaw.com.au dinasaw.com.au...

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