Maintenance Guide Manual

AUTO DYNO MAINTENANCE
Model 424x All-Wheel Drive Dynos
Version 3 Maintenance Guide for Automotive Dynamometers
25
5 If the brake shoe clearance is out of specification, loosen the upper nut on the air
can rod.
6 Adjust the lower nut until the brake shoes are .25 inch (6mm) away from the dyno
drum.
7 Tighten the upper nut on the air can rod down onto the brake actuating tube to
sandwich the tube between the two nuts.
8 Torque the lower nut to 110 foot-pounds.
If you cannot adjust the brakes to specification, you will need new brake shoes.
Contact Dynojet.
Figure 22: 424x SAAR Brake—Adjust the Brake Shoe Clearance
CHANGING THE SAAR BRAKE SHOES
Refer to “Changing the SAAR Brake Shoes” on page 10 for detailed instructions.
BR032
lower nut
air can rod
upper nut
brake actuating tube