Mechanical Brake Inspection Procedure; Brake Caliper Adjustment; Brake Pad Replacement - Argo 6 x 6 Vanguard Operator's Manual

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.
SECTION 7
MAINTENANCE INFORMATION
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
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 re-
mainder 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.
30
brake pad.