Shindaiwa 357 Manuel de service télécharger pdf (Page 101)

Q Shindaiwa Inc. 1995 101

Chain Brakes Section 10

Remove the clutch cover from the saw (Figure

10.6), and thoroughly clean all chips and oil

residue from the cover and brake assembly.

■ For easier handling during service, clamp

the cover between two blocks of wood in a

vise (Figure 10.7).

Using the illustrations in Figure 10.5 as a

reference, disassemble in the following order:

STEP 1. While preventing the lever bolt from

turning, loosen but do not remove the lever

nut.

STEP 2. Use pliers (575-695 requires spring

tool p/n 22150-96510) to release tension on

the lever spring (Figure 10.8), and then

remove the lever nut and spring.

STEP 3. Reinstall the lever nut, and then push

the lever forward to activate the chain brake

mechanism.

STEP 4. Remove the lever nut, unscrew the

lever bolt, and then remove the brake lever

and inner lever assemblies.

STEP 5. Loosen the adjuster screw (counter

clockwise to loosen), and then remove the

block, adjuster screw, and spring.

STEP 6. Remove the band retaining screw,

and then remove the band and screw as an

assembly.

Wash all parts in clean solvent, and then wipe

or blow dry. Visually inspect all hardware for

signs of wear, bending, or cracking, and

replace components as necessary.

■ Inspect the brake lever and inner lever for

distortion, and especially for any measur-

able wear at pivot holes or contact areas.

■ Inspect the coil spring and also the brake

lever spring for damage or distortion, as

well as for any signs of fatiguing that might

lead to failure under load.

■ Carefully inspect the threads on the lever

bolt and band adjustment bolt, and discard

either piece if cross-threaded or otherwise

damaged.

Disassembly

(Typical)

Figure 10.7 Securing the Cover During Disassembly

57702

Clutch Cover

Bar

Nuts

Figure 10.6 Removing the Clutch Cover (577)

CHB-55

Wood

Block

Clutch Cover

CHB-56

p/n 22150-96510

Figure 10.8 Releasing Lever Spring Tension (575 shown)

CHAIN BRAKES

Inspection

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