Service manual

Group 170 Preventive Maintenance

Check Exhaust Pipe, Silencer, or Particu-

later Filter

Note: For further information refer to literature in Func-

tion Group 2.

Note: This check is also considered Noise Emissions

Control Maintenance, which is required maintenance for

any Volvo vehicle. For further information on Noise Emis-

sions refer to “Noise Emissions” page 6.

To perform a check of the exhaust pipe, Silencer or Par-

ticulater complete the following

•

Check if there is exhaust leakage around the ex-

haust ports on the cylinder heads, at the intake and

exhaust manifolds, and at the ﬂanges; exhaust

pipe(s), Silencer or Particulate Filter.

•

Check if there is exhaust leakage at the jointing

clamp for the front exhaust pipe.

Check Springs and U-Bolts

To perform a check of the Springs and U-bolts complete

the following:

1 Check the springs for damaged or broken leaves.

2 Check the spring bushing location in the spring eye.

3 Inspect the U-bolts for signs of movement or wear.

4 Check that the spring center is aligned with the cen-

ter of the spring pad on the front axle beam. Verify

this alignment by inspecting the underside of the

spring to see if there are any signs of movement be-

tween the spring and the axle member.