Operating instructions

6.11 Air Intake
6.11.1 Contamination indicator – Signal ring position check (optional)
Preconditions
☑ Engine is stopped and starting disabled.
Checking signal ring position
1. If the signal ring is completely visible in the
observation window (2), replace air filter
(→ Page 135).
2. After installation of new filter, press reset
button (1).
Result: Engaged piston with signal ring moves back
to initial position.
138 | Task Description | MS150093/01E 2012-06
TIM-ID: 0000005484 - 007