Operator`s manual

SECTION 7

MAINTENANCE INFORMATION

Mechanical brake inspection procedure

With the firewall removed, inspect both brake caliper assem-

blies.

Figure 7-20. Mechanical brake assemblies

7.3.2 BRAKE CALIPER ADJUSTMENT

Adjust the calipers when:

• the brake adjustment nuts are tightened all the way but the

steering lever travel still exceeds 7" or

• the total clearance between the brake pads and the brake

disc exceeds .010".

To adjust the brake calipers:

1. Tighten the lock nut with a 1/2" open end wrench, no wider

than the thickness of the lock nut (Figure 7-21). As the

lock nut is tightened, measure the clearance between the

brake disc and pad as shown in Figure 7-22, using a .010"

feeler gauge. .010" is the correct clearance between the left

brake pad and the brake disc when the right pad is pressed

against the disc.

2. Use another 1/2" open wrench to tighten the outer lock

nut to the inner one.

3. Tighten the adjustment lock nut with a 1/2" wrench so it is

snug but the bolt can still be turned freely with fingers.

4. Adjust the other brake caliper assembly by repeating steps

1 to 3.

Figure 7-21. Tightening the lock nut

7.3.3 BRAKE PAD REPLACEMENT

During the inspection of all 4 brake pads, if they are:

• worn to 3 mm (1/8") thickness as shown in Figure 7-22;

• glazed and brake efficiency is affected; or

• contaminated with lubricant and brake performance is af-

fected;

they are no longer serviceable and must be replaced.

Figure 7-22. Measuring the distance between the brake disc and

brake pad.

To replace the brake pads:

Use an electric drill and 1/4" drill bit to remove the heads of the

rivets holding the old pads to the calipers. Clear the remainder

of the rivets from the calipers and install each 100-56 brake

pad set (2 pads) using 8 of 120-09 rivets and a pop riveting

tool to fasten the pad in place. Alternatively, an ARGO dealer

will replace brake pads for you.