Grizzly G9983 Manuel d'utilisateur télécharger pdf (Page 36)

-34- G9983 15" Open-End Wide-Belt Sander

Replacing Brakes

Figure 33. Removing caliper to replace

brake pads.

The only regular maintenance to perform on the

brakes is to keep the rotor clean. This is a simple

process and can be performed by spraying both

sides of the rotor with automotive brake parts

cleaner. The brake rotor must be free and clean

of any dust, dirt, oil or moisture.

Eventually the brake pads will wear out. Checking

and replacing these is a simple project that can

be done in the shop, with the exception of having

the rotor resurfaced.

To check the brake pads:

1. Disconnect the sander from the power

source and remove the air pressure com-

pletely.

2. Remove the four screws that secure the

motor cover on the right-hand side of the

machine. This will allow you to access the

brake components.

3. The brake pads consist of a metal plate with

a composite pad. With a fine ruler, measure

the thickness of the composite pad only. If

one of the pads is below

1

⁄8" (approx. 3mm),

replace both.

To replace the brake pads:

1. Disconnect the sander from the power

source and remove the air pressure com-

pletely.

2. Remove the nuts from the two mounting

bolts. There are two snap rings on the

mounting pins behind the bracket. Remove

these.

3. Pull the mounting pins out of the caliper

bracket and remove the air line from the

caliper. The caliper should now be able to be

removed as in Figure 33.

4. The brake pads are secured to the caliper

with cap screws. One of these screws is eas-

ily accessible; the other can only be reached

by disassembling the brake caliper. Do this

and remove the cap screws to remove the

brake pads.

5. Remove the brake rotor and have it profes-

sionally resurfaced. For this, find a local

machinist or auto supply store that regularly

resurfaces brake rotors for automobiles. If

visible cracks are present in the brake rotor,

replace with a new one. Clean the rotor with

automotive brake cleaner to remove any oil

or dirt. Handle with a dry rag and install

exactly the reverse of removal.

6. Install new brake pads, mount the caliper

and reconnect the air line.

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