Dynabrade Grinder Series Disassembly And Assembly Instructions Download Page 4 | Manualshive

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4. Use soft-faced hammer to knock motor assembly loose from housing and remove.

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Summary of Contents for Grinder Series

Page 1: ...ecific tool manual for each model To avoid damage use the proper repair tools designed for motor disassembly and assembly Remove any flanges abrasive back up disc or guard Motor Disassembly Tutorial shows tool with 54951 Spindle Applies to all models 1 Fasten housing in vise bronze or aluminum jaws with throttle handle pointing up Use a 4mm hex key to remove 95720 Screws 4 Turn counterclockwise ...

Page 2: ...2 Remove throttle handle assembly Remove 54961 Spacer 54960 Motor Spring and 54958 Gasket 54958 Gasket 54960 Motor Spring 54961 Spacer ...

Page 3: ...3 Remove 54953 Governor Chamber ...

Page 4: ...4 Use soft faced hammer to knock motor assembly loose from housing and remove ...

Page 5: ...5 Carefully fasten pinion gear in vise bronze or aluminum jaws Use a slot blade screwdriver to remove governor assembly Turn clockwise Left Hand Thread ...

Page 6: ...ng Separator 2 around 54905 Cylinder Place separator and motor in 96232 Arbor Press 2 with pinion gear pointing down Use a Ø flat end drive punch to push rotor out of 54907 Bearing 96232 Arbor Press 96346 Bearing Separator ...

Page 7: ...7 Use external ring pliers to remove 54907 Bearing from 54880 Rear End Plate ...

Page 8: ...8 Remove 54904 Vanes from 54903 Rotor ...

Page 9: ...9 Use 95262 Wrench 14mm to remove pinion gear Turn counterclockwise 14MM ...

Page 10: ...10 Remove 54900 Bearing 54901 Front End Plate along with shims and 54902 Spacer Motor disassembly completed Clean and inspect parts Replace all parts that are worn or damaged ...

Page 11: ...Motor Assembly 1 Fasten 54903 Rotor in vise bronze or aluminum jaws with spindle pointing up Install 54902 Spacer onto rotor ...

Page 12: ... Plate Select 003 0 08 mm shim thickness from 94910 Shim Pack and install into front end plate Install 01787 O Ring into outside diameter groove of plate Install 54900 Bearing all the way into plate Shims 54909 Shim 01787 O Ring 54900 Bearing ...

Page 13: ...3 Install bearing and plate onto rotor Apply a small amount of Loctite 243 to spindle threads of rotor Loctite 243 ...

Page 14: ...4 Use 14mm Wrench or thin crowfoot to fasten pinion gear Turn clockwise Torque to 17 N m 150 lbs in 14mm Torque to 17 N m 150 lbs in ...

Page 15: ...te away from the rotor Check clearance between the rotor and plate Use a 001 0 03 mm thick feeler gauge Notice The clearance should be 001 0015 0 03 to 0 04 mm If rotor plate clearance requires further adjustment repeat steps 2 to 5 Remove or add shims as required 001 0015 0 03 0 04 mm ...

Page 16: ...6 Apply 95842 Dynabrade Air Lube 10W NR or equivalent to 54904 Vanes and install OIL ...

Page 17: ...7 Install 54905 Cylinder and rear end plate so that air inlet openings line up ...

Page 18: ...8 Install 54880 Rear End Plate with related components Position 54907 Bearing on assembly 54880 Rear End Plate 96773 O Ring 96772 Wave Washer 96779 O Ring ...

Page 19: ...AISED INSIDE DIAMETER of 96419 Bearing Press Tool and the arbor press to install rear bearing Press bearing flush with top of plate This will produce 12 Lbs load between both bearing plates and the cylinder 96419 ...

Page 20: ...Loctite 243 to threads of governor Use a slot blade torque driver to install governor assembly Left Hand Thread Turn counterclockwise Torque to 1 4 N m 12 lbs in Motor assembly completed Left Hand Thread Turn counterclockwise Torque to 1 4 N m 12 lbs in 54998 Governor Assembly 243 Loctite ...

Page 21: ...tor Installation 1 Fasten housing in vise bronze or aluminum jaws Carefully slide motor assembly into housing Install 54953 Governor Chamber with 95526 O Ring Motor Assembly Governor Chamber 95526 O Ring ...

Page 22: ...2 Install 54958 Gasket 54960 Motor Spring 54961 Spacer Install throttle handle assembly and 95720 Screws 4 54958 Gasket 54960 Motor Spring 54961 Spacer ...

Page 23: ...3 Use a 4mm hex key to fasten 95720 Screws 4 Turn clockwise Torque to 9 N m 80 lbs in Motor installation completed Torque to 9 N m 80 lbs in ...

Page 24: ...structions along with the specific tool manual for each model To avoid damage use the proper repair tools designed for motor disassembly and assembly Remove any flanges abrasive back up disc or guard Gear Disassembly Tutorial shows tool with 54951 Spindle Applies to all models 1 Use an adjustable pin spanner Ø 4mm pins to remove 54952 Lock Ring Turn counterclockwise ...

Page 25: ...2 Remove work spindle assembly from housing ...

Page 26: ...3 Use tweezers to remove 97995 Wave Disc ...

Page 27: ...4 Use 96346 Bearing Separator 2 and 96232 Arbor Press 2 to remove 02649 Bearing Use Ø 5 16 flat end drive punch to push spindle from bearing ...

Page 28: ...ess with spindle pointing down Push spindle from 54917 Bearing and bevel gear removing both at the same time Gear disassembly completed Clean and inspect parts Replace all parts that are worn or damaged Hydraulic Press 54917 Bearing Bevel Gear ...

Page 29: ...Gear Assembly 1 Use press to install 54917 Bearing onto spindle Press until fully seated on spindle 54917 Bearing Press Tool ...

Page 30: ...2 Use press to install bevel gear onto spindle Press until fully seated on spindle Bevel Gear PRESS UNTIL FULLY SEATED ON SPINDLE GEAR INSTALLATION COMPLETED ...

Page 31: ...240 Bearing Press Tool to install 02649 Bearing onto spindle Press until bearing is level with top of spindle 96240 Bearing Press Tool 02649 Bearing 02649 INSTALLATION COMPLETED PRESS UNTIL LEVEL WITH TOP OF SPINDLE GAP ...

Page 32: ...ally there should be minimal free movement between the teeth Use an adjustable pin spanner Ø 4mm pins to fasten 54952 Lock Ring Check 360 rotation of the spindle assembly The correct fit should have minimal backlash without any restricted movement between the gears When gear fit is too tight add shim s to adjust and set the correct backlash Notice Once gears are adjusted correctly Loosen 54952 Loc...

Page 33: ...5 Install 97995 Wave Disc ...

Page 34: ...f 96747 Grease to housing cavities and pinion gear Notice Do not apply grease in top spindle bearing pocket Assembly will be difficult Install shims and spindle assembly 96747 GEAR GREASE 14 grams GREASE GREASE NO GREASE ...

Page 35: ...ute for every 20 SCFM Example Specification states 115 SCFM set lubricator for 6 drops per minute Gears Replace grease at 1000 hours of use or when tool is rebuilt Apply 14 grams of 96747 Grease according to instructions Operation Refer to tool manual and follow directions for checking RPM before installing any accessories Install guard and back up flange Use appropriate wrenches when installing a...

Page 36: ...8 Important Use all five 96274 Screws to fasten guard 7 or 9 securely Torque screws to 9 N m 80 lbs in Torque screws to 9 N m 80 lbs in ...

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