Shindaiwa 357 Service Manual download pdf (Page 104)

Q Shindaiwa Inc. 1995

104

■ Inspect the brake band for proper thick-

ness (Figure 10.16) and also for possible

wear or “slotting” from the band supports

on the cassette casting.

■ Examine the rivets securing the links

between the brake band and inner lever,

and replace if damaged or worn.

NOTE:

To replace the rivets or to install a new band,

grind the old rivet heads and then replace

with new rivets p/n 22169-54570 (new rivets

can be set with a small hammer).

Reassembly

Reassemble the chain brake in the reverse

order of disassembly, but include the following

additional steps or procedures:

■ Replace the brake lever snap ring with a

new ring p/n 02430-08080. After installa-

tion, check to see that the snap ring is

undamaged and is properly seated in its

groove.

■ Apply a generous layer of lithium-based

grease to the coil spring and also beneath

the coil spring cover.

■ After installing the brake assembly, cycle

the brake lever on and off 8-10 times before

starting the saw.

Testing

Manual Operation should be tested as

described on page 99 of this manual. Regard-

less of engine speed, the chain must stop

immediately whenever the chain brake is

activated.

IMPORTANT!

The 757 chain brake is not adjustable. If the

brake fails to engage completely or ap-

pears to “drag” while disengaged, the

entire assembly must be removed and

inspected for worn, damaged, or improp-

erly assembled components.

Inertial Operation can be tested by following

the procedures described on page 107 of this

manual.

WARNING!

The saw must be OFF during inertial

testing!

Section 10 Chain Brakes

757 Chain Brake

(Contunued)

CHAIN BRAKES

Figure 10.16 Check Band Thickness

CHB-65

90

80

70

60

50

40

30

20

10

10

20

30

40

50

60

70

80

90

0

0

Rivets

1 2 ... 99 100 101 102 103 104 105 106 107 108 109 ... 137 138

Comments to this Manuals

No comments