Engine Maintenance; Servicing The Air Cleaner; Servicing The Engine Oil - Toro 74637 Operator's Manual

Engine Maintenance

Servicing the Air Cleaner

Service Interval: Before each use or daily—Check the air
cleaner for dirty, loose or damaged parts.
Every 50 hours—Service the paper element (more
often under extremely dusty, dirty conditions).
Every 100 hours—Replace the paper element (more
often under extremely dusty, dirty conditions).
This engine is equipped with a replaceable, high density paper
air-cleaner element. Check the air cleaner daily or before
starting the engine. Check for a buildup of dirt and debris
around the air-cleaner system. Keep this area clean. Also,
check for loose or damaged components. Replace all bent or
damaged air-cleaner components.
Note: Operating the engine with loose or damaged
air-cleaner components could allow unfiltered air into the
engine, causing premature wear and failure.
Note: Service the air cleaner more often under extremely
dusty, dirty conditions.
1. Rotate the latches outward.
2. Remove the cover to access the air-cleaner element
(Figure 27).
3. Remove the element, and gently tap the element to
dislodge dirt.
Note: Do not wash the paper element or use
pressurized air, as this will damage the element.
Note: Replace a dirty, bent, or damaged element.
Handle the new element carefully; do not use if the
sealing surfaces are bent or damaged.
4. Clean the air-cleaner base as required, and check the
condition.
5. Install the paper element onto the air-cleaner base.
6. Install the cover, and secure it with the latches (Figure
27).
1 2
1. Air-cleaner latch
2. Engine

Servicing the Engine Oil

Oil Type: Detergent oil (API service SJ or higher)
Crankcase Capacity: 1.9 L (64 oz) when the filter is changed
Viscosity: See the table below.
0
0
Checking the Engine-oil Level
Service Interval: Before each use or daily—Check the
engine-oil level.
1. Park the machine on a level surface, disengage the
blade-control switch, stop the engine, and remove the
key.
2. Make sure that the engine is stopped, level, and is cool,
so the oil has has time to drain into the sump.
3. To keep dirt, grass clippings, etc., out of the engine,
clean the area around the oil-fill cap/dipstick before
removing it.
4. Remove the dipstick and wipe the oil off from it
(Figure 29).
24
3
4
Figure 27
3. Paper element
4. Air-cleaner base
SAE 30
50
g017552
Figure 28
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