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Section 3 – MAINTENANCE
WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. STOP
engine. STOP blade. Engage parking brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
HOT. Avoid serious burns, allow all parts to cool
before working on machine.
3.1 INTRODUCTION
To retain the quality of the Hydro Rear Engine Rider,
use genuine SNAPPER replacement parts only.
Contact a local SNAPPER dealer for parts and service
assistance. For the correct part or information for a
particular Hydro Rear Engine Riding Mower, always
mention the model and serial number. SNAPPER
recommends returning the Hydro Rear Engine Rider to
an authorized SNAPPER dealer annually for inspection
and addition of any new devices, which might upgrade
the safety of the Hydro Rear Engine Rider. For the
nearest SNAPPER dealer in your area, check the
yellow pages under the heading LAWN MOWERS.
For engine parts and service, look for the engine
manufacturer’s dealers under the heading, ENGINES -
gasoline.
3.2 SERVICE - AFTER FIRST 5 HOURS
Routine maintenance is important to the
performance and life of your Hydro Rear Engine
Rider. Service performed properly and at the
recommended interval is essential. Refer to Section
“MAINTENENACE SCHEDULE” in this manual and
in the Engine Owner’s Manual. Carefully complete
all of the recommended service procedures.
3.2.1. Change Engine Oil
The Hydro Rear Engine Rider is equipped with a
drain valve that allows the engine oil to be drained
without the need for tools.
1. Locate oil drain on engine. Attach hose (supplied
with machine) to fitting. See Figure 3.1.
2. Place a 2 quart minimum capacity container
under the drain valve and route hose into container.
3. Loosen or remove oil fill cap on engine.
4. Turn drain valve counter-clockwise and pull out.
Allow sufficient time for oil to drain completely.
5. Close the oil drain valve. Push valve in and turn
clockwise. Remove hose from fitting.
6. Fill engine crankcase to proper level with new oil.
Refer to the Engine Owner’s Manual for crankcase
capacity and oil specifications.
IMPORTANT: Any oil spilled during draining or
filling must be cleaned off of the machine before
operating. Dispose of drain oil properly.
FIGURE 3.1
3.2.2. Service Engine Air Cleaner
The engine is equipped with a dual element air
cleaner. Both the foam pre-cleaner and cartridge
require service.
1. Locate engine air cleaner. Loosen cover knob
and remove cover. See Figure 3.2.
FIGURE 3.2
2. Remove cartridge knob.
3. Carefully lift the pre-cleaner and cartridge up off
of base and stud.
4. Clean base very carefully - DO NOT allow debris
to enter carburetor.
5. Service pre-cleaner. Wash in soap and water.
Dry thoroughly in a clean rag. Apply oil,
saturating foam. Remove excess oil by
squeezing foam in a clean absorbent rag.
6. Service cartridge. Clean by tapping gently on
firm surface. Tapping will remove loose debris
only. If cartridge is damaged or dirty, REPLACE
IT. DO NOT oil cartridge or use pressurized air.
7. After removing excess oil from foam pre-cleaner,
install onto cartridge and place assembly down
stud onto base.
8. Secure cartridge. Tighten cartridge knob
securely.
9. Install cover and tighten cover knob securely.
ATTACH HOSE TO OIL
DRAIN FITTIN
G
ENGINE AIR
CLEANER COVER
REMOVE
COVER KNOB
& LIFT COVER
OFF STUD.
CARTRIDGE
KNOB
CARTRIDGE WITH
PRE-CLEANER