Grizzly MODEL G0765 owner manual Brush Replacement, To replace motor brushes

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Brush Replacement

This lathe is equipped with a universal motor that uses two carbon brushes to transmit elec- trical current inside the motor. These brushes are considered to be regular "wear items" or "consumables" that will need to be replaced dur- ing the life of the motor. The frequency of required replacement is often related to how much the motor is used and how hard it is pushed.

Replace the carbon brushes when the motor no lon- ger reaches full power, or when the brushes mea- sure less than 14" long (new brushes are 58" long).

Tools Needed

Qty

Flat Head Screwdriver #2

1

Phillips Head Screwdriver #2

1

Replacement brush part number: P0765150-1

To replace motor brushes:

1.DISCONNECT LATHE FROM POWER!

2.Remove the three screws that secure rear motor cover, then remove cover to gain access to rear brush (see Figure 86).

Screws

Brush Cap

Figure 86. Location of rear motor brush cap.

Model G0765 (Mfd. Since 12/13)

3.Unscrew rear brush cap and carefully remove brush from motor (see Figure 87).

Brush

Cap

Figure 87. Rear motor brush components

removed.

4.Unscrew front brush cap and remove brush from motor (see Figure 88).

Brush Cap

 

Brush

 

 

 

Figure 88. Front brush components removed.

5.Install new brushes.

6.Re-install brush caps.

7.Replace rear motor cover.

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Contents Model G0765 14 Benchtop Lathe Page Table of Contents Control Panel Wiring ServiceMachine Description Manual Accuracy IntroductionContact Info Identification Control Panel Controls ComponentsCarriage End Gears Tailstock Rear ControlsMachine Data Sheet Tailstock Info Features Safety Instructions for Machinery SafetyPage Additional Safety for Metal Lathes Additional Chuck Safety Availability Power SupplyFull-Load Current Rating 110V Circuit RequirementsExtension Cords Grounding & Plug RequirementsMinimum Gauge Size 14 AWG 50 ftNeeded for Setup SetupPreparation UnpackingInventory Installed Components Figure QtyPackaged Components Figures Qty Before cleaning, gather the following CleanupBasic steps for removing rust preventative Site Considerations Power Connection AssemblyConnecting Power Disconnecting PowerTest Run Disengaged Factory adjustments that should be verified Recommended AdjustmentsSpindle Break-In Operation Overview OperationsChuck & Faceplate Mounting Installation Removal DeviceTo install the chuck Chuck InstallationTools Needed Qty Changing Jaw Set Scroll Chuck ClampingTo change the jaw set To mount a non-concentric workpiece to the faceplate FaceplateTailstock Using QuillTailstock Quill Specs Positioning TailstockOffsetting Tailstock Installing ToolingTo install tooling in the tailstock Removing ToolingTo offset the tailstock Aligning Tailstock to Spindle CenterlineItems Needed Qty To align the tailstock to the spindle centerlinePage Dead Centers CentersMounting Dead Center in Spindle Removing Center from SpindleRemoving Center from Tailstock Mounting Center in TailstockMounting Workpiece Between Centers To mount a center in the tailstockTo install and use the steady rest Tools Needed for Installation/Removal QtySteady Rest Compound Rest Four-Way Tool Post Installing ToolBelow are two common methods Aligning Cutting Tool with Spindle CenterlineTo align cutting tool with tailstock center Top ViewSpindle Speed Manual FeedSetting Spindle Direction & Speed Setting Spindle Speed RangeConfiguration Example To set spindle speed to 100 RPMPower Feed Controls Power FeedTo set power feed for 0.04 in./rev Setting Power Feed RatePower Feed Configuration Primary Threading ConfigurationSecondary Threading Configuration End GearsTo configure end gears for threading 20 TPI End Gear Configuration Example40T 65T Gear 50 T Ge ar 20 TPI Page Headstock Threading Controls ThreadingTo set the lathe to thread 20 TPI Feed Direction LeverApron Threading Controls Thread Dial ChartThread Dial Dial Number Thread Dial D3640-Shop Fox Tool Table Plus AccessoriesCleaning/Protecting MaintenanceSchedule Lubrication Frequency LubricationBall Oilers Bedways Leadscrew & Carriage RackCross Slide & Compound Slide Change Gear Bushing Machine StorageTumbler Gears Preparing Lathe for StorageTroubleshooting ServiceSymptom Possible Cause Possible Solution Lathe Operation Leadscrew End-Play Adjustment Backlash AdjustmentCross Slide To remove leadscrew end playTo adjust cross slide and compound slide gibs Gib AdjustmentFuse Replacement Half Nut AdjustmentTo adjust half nut To replace fuseTo replace motor brushes Brush ReplacementTensioning Timing Belt Timing Belt Tension ReplacementReplacing Timing Belt Wiring Safety Instructions WiringMachine Frame Control Panel WiringG0765 wiring overview Control Panel Wiring Photos110 VAC Motor/Speed Sensor/ Plug WiringMain Description Description 255 254 256 257 259 258 253 252 261 251 260 Labels & Cosmetics FrontAppendix Threading ChartsComments Warranty CardBOX BELLINGHAM, WA Grizzly INDUSTRIAL, INCWarranty & Returns