Cleaning The Cooling System - Toro 74170 Operator's Manual

Grease Front Castor Pivots
Lubricate the front castor pivots once a year.
1. Remove hex plug and cap. Thread a grease zerk
into hole.
2. Pump grease into zerk until it oozes out around
top beraring.
3. Remove grease zerk in hole. Reinstall hex plug
and cap.

Cleaning the Cooling System

Clean the air intake screen from grass and debris
befor each use.
Clean cooling fins and engine shrouds every 300
hours or yearly, which ever comes first.
1. Stop the engine, set the parking brake, remove
the key and disconnect the spark plug wire(s)
from the spark plug(s).
2. Remove air–intake screen, cylinder covers and
fan housing.
3. Clean debris and grass from parts.
4. Reinstall air–intake screen, cylinder covers and
fan housing.
1
4
Figure 38
1. Air–intake Screen
2. Fan Housing
Maintenance
2
3
m–4295
3. Cylinder Cover
4. Cylinder Cover
43