Cleaning; Engine Air Cleaner System; Turbine Precleaner - Walker T27i Operator's Manual

Maintenance Instructions

Cleaning

CLEANING
If a pressure washer is used on the ex-
posed working parts, avoid water on the
electrical parts and the engine cooling sys-
tem.

Engine Air Cleaner System

There are two main components in the engine air
cleaner system: a turbine precleaner and a Don-
aldson Radialseal™ air cleaner. Each component
is checked, cleaned and maintained on a different
schedule based on the filtering action required.
Each component is serviced as follows:
Turbine
Precleaner
Precleaner
Tube
Restriction Gauge
66
CAUTION
Hose
Clamp
Air Filter
Donaldson
Air Cleaner
Engine
Engine Air Cleaner System Components

Turbine Precleaner

The turbine precleaner is mounted on a remote air
intake tube connected to the Donaldson air clean-
er. A spinning fan driven by the intake airflow
separates dust from the air, giving the initial stage
of air clean ing. Dust particles are exhausted
through a single small vent in the side of the hous-
ing. Since no dust is trapped, the precleaner oper-
ates without clean ing. The only maintenance
required is to check the operation of the internal
fan every 100 hours. Verify operation:
1. Loosen the hose clamp and remove the tur-
bine precleaner.
2. Reach into the intake and check that the fan is
spinning freely. Reinstall the precleaner.
If the fan is not spinning, service or replace the
precleaner as required.
Air Intake
Hose
Cover
Latch
Hose
Clamps
Primary Filter
Safety
Filter
Mounting
Band
T27i
Donaldson Air
Cleaner Cover
Dust Ejection
Valve
Element