Porter-Cable 3807 Brush Inspection and Replacement, Foreign substance, Flats on the arbor

Page 17

4.Remove arbor screw (E) Fig. 52, by turning screw

(E) clockwise while at the same time pressing in on arbor

lock (F) Fig. 53, to keep arbor from turning. Remove

F

screw (E) Fig. 52, outside blade flange (H) and blade (J).

 

 

DO NOT REMOVE INSIDE BLADE FLANGE.

 

 

5.

Make sure the inside surfaces of both the inside and

 

 

outside blade flanges are clean and free from any

 

 

foreign substance.

 

 

6.

Make sure the inside blade flange is completely on

 

 

the arbor with the flats in the flange engaged with the

 

 

flats on the arbor.

 

 

7.

Install new blade (J) Fig. 52, outside blade flange

 

 

(H) and arbor screw (E). Turn arbor screw (E)

 

 

counterclockwise to tighten while pressing in on arbor

 

 

 

Fig. 53

lock (F) Fig. 53, to keep arbor from turning.

 

IMPORTANT: Make sure flats in outside blade flange

 

 

(H)Fig. 52, are engaged with flats on arbor shaft and that teeth of saw blade (J) are pointing down at the front, as shown in Fig. 52.

8.Rotate arbor cover (C) Fig. 51, until hook in cover is engaged under screw (B) and tighten screw (B) which was loosened in STEP 2.

BRUSH INSPECTION AND REPLACEMENT

CAUTION: BEFORE INSPECTING BRUSHES, DISCONNECT THE MACHINE FROM THE POWER SOURCE.

Brush life varies. It depends on the load on the motor. Check the brushes after the first 100 hours of use for a new machine, or after a new set of brushes has been installed.

After the first check, examine them after about 10 hours of use until such time that replacement is necessary.

The brush holders (A) Fig. 54, are located on the motor housing opposite each other. Fig. 55, illustrates one of the brushes removed for inspection. When the carbon on either brush (B) is worn to 316" in length or if either spring or shunt wire (C) is burned or damaged in any way, replace both brushes. If the brushes are found serviceable after removing, reinstall them in the same position as removed.

A

C

B

Fig. 54

Fig. 55

17

Image 17
Contents Compound Read and Follow ALL Instructions Important Safety InstructionsAdditional Safety Rules for Compound Slide Miter SAW S When servicing use only identical replacement parts Replacement PartsTo R Extension Cord SelectionOperating Instructions Power ConnectionsR E W O R D PackingRaising the Cuttinghead Moving Cuttinghead To the Rear PositionMoving Table to the 0 Degree CUT-OFF Position AssemblyAssembling Dust Elbow and Dust BAG Assembling Work Clamp Locking Switch in the OFF PositionStarting and Stopping Machine Rotating Table For Miter CuttingTable Hazard Area Adjusting Sliding FIT Between M O Vable Table and BaseAdjusting Fence 90 Degrees to Blade Is in the up position as shown Work Clamp OperationTilting Cuttinghead for Bevel Cutting Adjusting 90 and 45 Degree Bevel Positive STO P S Adjusting Sliding FIT Between Trunnion and Bevel BracketAdjusting the Tension of Cuttinghead Return Spring Adjusting Blade GuardAdjusting Sliding FIT Between Cuttinghead ARM and Trunnion Adjusting Downward Travel SAW BladeUsing SAW with 4 Extensions Using the SAW on SAW HorsesTo O L STO R a G E Fastening the SAW to a W O R K B E N C HBut do not turn the saw on at this time Correct Operating Procedure for Slide CuttingE R Ation Cutting Crown Moulding Using SAW AS a C H O P S AWDado Cutting Changing the Blade MaintenanceFlats on the arbor Brush Inspection and ReplacementForeign substance Failure to Start Keep to O L CleanService and Repairs Delta Service Centers