Grizzly G9249 Tensioning Replacing V-Belts, Adjusting Motor V-Belt, Replacing Motor V-Belt

Page 53

Tensioning/

Replacing V-Belts

Adjusting Motor V-Belt

 

Tools Needed

Qty

Wrench 18mm

1

To adjust the motor V-belt tension:

 

1.DISCONNECT LATHE FROM POWER!

2.Push the belt tensioning lever back to tension both belts (see Figure 90).

Belt

Tensioning

Lever

Figure 90. V-belt tensioning lever.

3.From the back of the lathe, check the motor V-belt deflection when moderate pressure is placed on the V-belt mid-way between the pulleys—it should be approximately 12" (see

Figure 91).

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Figure 91. Checking motor V-belt tension.

G9249  12" x 37" Belt Drive Gap Bed Lathe

4.To adjust the motor V-belt tension, loosen the jam nuts shown in Figure 92, then adjust the tensioning hex bolt to raise or lower the motor.

Tensioning

Jam Nuts

Hex Bolt

 

Figure 92. Motor V-belt tensioning hex bolt and

jam nuts.

5.Re-check the V-belt deflection, and, when you are satisfied with the setting, re-tighten the jam nuts.

Replacing Motor V-Belt

 

Tools Needed

Qty

Hex Wrench 5mm

1

To replace the motor V-belt:

 

1.DISCONNECT LATHE FROM POWER!

2.Pull the belt tensioning lever forward to release V-belt tension, then roll the motor V-belt off the motor pulley.

3.Raise the headstock cover.

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Contents Model G9249 Ss ,EAD from Leadbased PAINTS Table of Contents Contact Info IntroductionForeword Functional Overview Identification Machine Data Sheet Tailstock Info Other Specifications  !,7!93 53%3 %!2.2 02/4%#4/ %. /0%2!4.! -!#.%29  !,7!93 53% !.3 !002/6%$$ 3!&%49 ,!33%33 7%. /0%2!4 53%3 2%#/--%.$%$- !##%33/2%3  53%3!!2/5.$%$ %84%.3/..#/2$ 2!4%$4&/2/4%-!#.%!-0%2!%2 -!.9 -!#.%3 #!. %*%#4 7/2+0%#%3 4/7!2$ /0%2!4/2  !,7!93 ,/#+ -/,% !3%3 & 53%$ % %&/2% /0%2!4. -!#.%29#Additional Safety Instructions For Metal Lathes 220V Operation Circuit RequirementsSetup Safety SetupItems Needed for Setup UnpackingBox 1 Inventory Figure Qty InventoryBox 2 Inventory Figure Qty Left Cabinet Stand Clean UpPlacement Location Lathe Assembly PlacementSite Considerations Floor LoadLoosening the carriage lock bolt Bolting to Concrete Floors Using Machine MountsMounting to Shop Floor Test Run Check Gearbox OilTo test run the machine Lubrication subsection onMERGENCYG3TOP Utton Spindle Break-In Recommended AdjustmentsFactory adjustments that should be verified Operations Operation SafetyBasic Controls Headstock ControlsTailstock Controls Carriage ControlsTo remove a chuck or faceplate Chuck & Faceplate Mounting/RemovalTools Needed Qty Mounting a Chuck or Faceplate Mounting a WorkpieceTo mount a workpiece in the 3-jaw chuck Using the 3-Jaw ChuckTo remove and install the jaws To mount a workpiece on the 4-jaw chuck Using the 4-Jaw ChuckInstalling a Sleeve and Center into the Spindle Using the FaceplateCenters To mount a workpiece on the faceplateRemoving a Sleeve and Center from the Spindle Installing a Tapered Tool into the QuillTailstock To set up the tailstock to cut a shallow taper Offsetting TailstockAligning Tailstock To align the tailstock with the headstockStep To remove a tapered drill arbor or drill bit To set up the tailstock for drillingDrilling with Tailstock Steady Rest To install and use the steady restHandwheel Dial Increments Follow RestCross Slide Tool Posts Compound SlideTo set the compound slide angle To load and use the 4-way tool postCalculating the Correct Spindle RPM Configuring the V-Belts and Back GearSpindle Speed To disengage the back gears To engage the back gearsPower Feed To set the feed rate Setting Feed RateRecommended Feed Rates Change Gears To re-configure the change gearsChange gear. G9249 12 x 37 Belt Drive Gap Bed Lathe Side Front ViewTo cut threads Threading OperationEdhidc H3022-Measurement Tool Set AccessoriesH2670-HSS Square Tool Bits Pc. Carbide Tipped Tool Bit SetsH5936-2 Pc. Knurling Tool Set H2996-Double Ended Boring BarG1070-MT3 Live Center Set H6879-Lathe Operation & Maintenance BookSchedule MaintenanceCleaning Protecting Spindle Bearing Oil LubricationLubricant Frequency Qty To add oil to the spindle bearing reservoirsHeadstock Idler Pulley Shaft Headstock Change GearsHeadstock Gears Headstock Spindle Pulley ShaftTo lubricate the feed rate gears Feed Rate GearsApron Gearbox Back Gear Shaft Ball OilersTo adjust the motor V-belt tension Adjusting Motor V-BeltTensioning Replacing V-Belts Replacing Motor V-BeltSpindle V-Belt Power Twist V-Belt G9249 12 x 37 Belt Drive Gap Bed LatheMotor & Electrical ServiceTroubleshooting Faceplate Operations To adjust the cross slide and compound slide gibs Adjusting GibsTo adjust the saddle gib To adjust the cross slide backlash To adjust the tailstock lockTailstock Lock Cross Slide BacklashSpindle Bearing Preload Gap RemovalDisconnect Lathe from Power To confirm that the bearings are correctly pre- loaded To remove/install the brass tips To remove/install the rest fingersRest Finger Tips Type of Finger Tip Part NumberTo adjust the half-nut guide bar Adjusting Half-NutElectrical Safety Instructions WiringDiagram on Wiring OverviewControl Panel MotorElectrical Cabinet Wiring Diagram Box Control Panel & Motor Wiring DiagramsBed PartsHeadstock Figured Flat NUT M8-1.25 Headstock Parts ListBushing Feed Rate Gearbox Feed Rate Gearbox Parts List Apron Apron Parts List + + Carriage Parts List #* #+ Spindle Lever Change Gear Cover Complete Steady Rest Complete Follow Rest Electrical Cabinet Electrical Cabinet Parts List Cabinet Stand Accessories Label Placement 22!.49 #!2$ 99.$5342!, .# 0//88 %,,.!- 7!  Warranty and Returns #ALL 4ODAYD&ORO! &2%%