Briggs & Stratton 250000 Spécifications télécharger pdf (Page 310)

NOTE: SPECIFICATION TABLES BEGIN ON PAGE 24 OF THIS SECTION.

3. Slide drive shaft and gear over to expose head of

cap screw. Cap screw can be removed with 7/16”

socket.

4. Remove remaining screws and remove sump.

Inspect Clutch Operation

1. Push on spring tang (3), Fig. 54, turning spring and

clutch sleeve in a counterclockwise direction.

2. Spring and sleeve should rotate approximately 1/8

turn. Worm gear should not rotate in the same

direction.

3. With clutch released, worm gear should rotate

freely in both directions.

Check Cam Gear

Check worm gear end play using feeler gauges at point

(4), Fig. 55. End play should not be less than .004” (.10

mm), or more than .017” (.43 mm).

Cam Gear Disassembly – Early Design

1. Remove “E” ring retainer.

2. Slide off copper washer, thick thrust washer, worm

and thin thrust washer.

3. Cam gear, oil slinger, clutch sleeve and springs are

serviced as an assembly.

Inspect Parts

Inspect for worn, burred or broken parts and replace as

required.

Fig. 54

Fig. 55 – Check Cam Gear

Assemble Cam Gear – Early Design

1. Slide worm gear with thin thrust washer on cam

gear.

2. Slide on thick thrust washer. Slide on copper

colored washer with gray coated side toward thick

thrust washer.

3. Install “E” ring retainer and check worm end play

as previously described. Inspect cam gear

assembly as previously described.

Disassemble Cam Gear – Current Design

1. Remove “E” ring.

2. Slide off thrust washers and worm gear.

3. Use thin blade screwdriver or similar tool to pry

lower clutch spring tab (2) out of hole in clutch

sleeve (1), Fig. 56.

4. Remove clutch sleeve.

Fig. 56

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Briggs & Stratton 250000 Spécifications Page 310

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