Shimano BR-M755 Servicehandleiding - Pagina 26

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Hydraulic Disc Brake

Precautions

with regard

to use

push back the brake pads, while being careful not to damage the surfaces of the brake pads. (If the

brake pads are not installed, push the pistons straight back in, while being careful not to damage them.)

If it is difficult to push the brake pads or pistons back, remove the reservoir tank cover and then try

again. (Note that some oil may overflow from the reservoir tank at this time.)

• Use isopropyl alcohol, soapy water or a dry cloth when carrying out cleaning and maintenance of the

brake system. Do not use commercially-available brake cleansers or silencing agents, as they can cause

damage to parts such as seals.

• Do not remove the pistons when disassembling the calipers.

• Parts are not guaranteed against natural wear or deterioration resulting from normal use.

• For maximum performance we highly recommend Shimano lubricants and maintenance products.

[

CAUTION

Installation

Installation of the rotor

Install the rotor and the rotor tightening plate to the

hub, and then install and tighten the bolts as shown

in Fig. 1.

Fig. 1

Hub

While wearing gloves, apply a force to the rotor to

turn it in a clockwise direction as shown in Fig. 2.

While doing this, tighten the rotor fixing bolts in the

order shown in the illustration.

Tightening torque:

2 - 4 N·m {18 - 35 in. lbs.}

• When the bicycle wheel has been removed, it is

recommended that pad spacers should be installed.

The pad spacers will prevent the piston from coming

out if the brake lever is depressed while the wheel is

removed.

• If the brake lever is depressed without the pad spacers

installed, the pistons will protrude further than is

normal. Use a flat-tipped screwdriver or similar tool to

I When cleaning with a compressor

• If disassembling the caliper body to clean the internal parts using a

compressor, note that moisture from the compressed air may remain on

the caliper components. Let the caliper components dry sufficiently before

reassembling the calipers.

Tightening plate

Rotor

Rotor fixing bolts

(#T25 torx)

Use a flat-tipped screwdriver or similar tool to bend

the edges of the tightening plate over the heads of

the bolts as shown in Fig. 3.

Fig. 2

< SM-RT96 >

Tightening torque:

40 N·m {350 in. lbs.}

pad spacer

Fig. 3

Tightening plate

Rotor

installation ring

TL-LR15

]