Volvo EPA2007 D13F Reference Manual page 172

166 BASIC SERVICE
W2033402
A. Locknut B. Adjusting Screw
a. Loosen the locknut A on the brake rocker arm adjusting screw.
b. Using the dial indicator with angled extension and base (9989876, 85111493 and
9999696), place the tip of the dial gauge on the yoke as close as possible to the rocker
arm yoke pad. Zero the gauge.
c. Tighten the rocker arm adjusting screw B until the dial shows that the yoke has
been pushed downward 0.60 ±0.05 mm (0.024 ±0.002 inch).
d. Loosen the rocker arm adjusting screw two full turns (720°).
e. Hold the adjusting screw to prevent it from turning further and, using a torque
wrench, tighten the locknut to specification
6. Remove the dial indicator and the feeler gauge.