Cleaning The Cooling System; Greasing And Lubrication - Toro Proline 30165 Operator's Manual

Checking the Spark Plug
1. Look at the center of the spark plug(s) (Fig. 28). If you
see light brown or gray on the insulator, the engine is
operating properly. A black coating on the insulator
usually means the air cleaner is dirty.
Important
Never clean the spark plug(s). Always
replace the spark plug(s) when it has: a black coating,
worn electrodes, an oily film, or cracks.
2. Check the gap between the center and side electrodes
(Fig. 28). Bend the side electrode if the gap is not
correct (Fig. 28).
2
1
Figure 28
1. Center electrode insulator
2. Side electrode
Installing the Spark Plug
1. Install the spark plug(s). Make sure the air gap is set
correctly.
2. Tighten the spark plug(s) to 24 N m (18 ft.-lb.).
3. Push the wire(s) onto the spark plug(s) (Fig. 27).

Cleaning the Cooling System

Service Interval/Specification
Before each use, check and clean engine cooling system.
Remove any build–up of grass, dirt or other debris from
the cylinder and cylinder head cooling fins, air intake
screen on flywheel end, and carburetor–governor levers
and linkage. This will help insure adequate cooling and
correct engine speed and will reduce the possibility of
overheating and mechanical damage to the engine.
3
0.65 mm
(0.025 in.)
3. Air gap (not to scale)
(s)
24

Greasing and Lubrication

Service Interval/Specification
Grease the wheel bearings every 8 operating hours and the
transmission couplers every 200 operating hours. Grease
more frequently when operating conditions are extremely
dusty or sandy.
Grease Type: General-purpose grease.
How to Grease
1. Disengage the power take off (PTO), set the parking
brake, and turn the ignition key to off. Remove the
key.
2. Clean the grease fittings with a rag. Make sure to
scrape any paint off the front of the fitting(s).
3. Connect a grease gun to the fitting. Pump grease into
the fittings until grease begins to ooze out of the
bearings.
4. Wipe up any excess grease.
Where to Add Grease
1. Lubricate the wheel bearings and front spindles until
grease begins to ooze out of the bearings (Fig. 29).
Figure 29
2. Lubricate the transmission couplers (Fig. 30).
m–2147