Use and Care Manual

Emission Control System Certication Label
NOTE: Tampering with emission controls and components by
unauthorized personnel may result in severe nes or penalties.
Emission controls and components can only be adjusted by
EPA and/or CARB authorized service centers. Contact your
John Deere Retailer concerning emission controls and
component questions.
The presence of an emissions label signies that the engine has been
certied with the United States Environmental Protection Agency (EPA)
and/or California Air Resources Board (CARB).
The emissions warranty applies only to those engines marketed by
John Deere that have been certied by the EPA and/or CARB; and
used in the United States and Canada in off-road mobile equipment.
Altitude Adjustment (Gasoline Engines Only)
If your engine features a carburetor it is calibrated by the engine
manufacturer and is not adjustable.
If your engine is operated at altitudes below 1006 m (3,300 ft.), a high
altitude carburetor jet kit is not required. If your engine is operated at
altitudes above 1006 m (3,300 ft.), a high altitude carburetor jet kit may
be required for proper engine performance and emissions control.
Operating the engine with the wrong carburetor conguration at a given
altitude may increase the engine’s emissions and decrease fuel
efciency and performance.
See a qualied service provider for details on jet kit requirements for
your specic product.
Avoid Fumes
CAUTION: Avoid injury! Engine exhaust fumes contain
carbon monoxide and can cause serious illness or death.
Do not run an engine in an enclosed area, such as a garage,
even with doors or windows opened.
Move the machine to an outside area before running the
engine.
Engine Oil
Use oil viscosity based on the expected air temperature range during
the period between oil changes.
MXAL42826—UN—09APR13
The following John Deere oils are preferred:
• John DeereTurf-Gard™
• John DeerePlus-4™
• John DeerePlus-50™ II
Other oils may be used if above John Deere oils are not available,
provided they meet the following specication:
• API Service Classication SJ or higher
Checking Engine Oil Level
IMPORTANT: Failure to check the oil level regularly could lead to
serious engine problems if oil level is out of the operating
range:
• Check oil level before operating.
• Check oil level when the engine is cold and not running.
• Keep oil level between the dipstick marks.
• Shut off engine before adding oil.
NOTE: Check oil twice a day if you run engine over 4 hours in a day.
Make sure that engine is cold when checking engine oil level.
1. Park machine safely. (See Parking Safely in the SAFETY section.)
IMPORTANT: Dirt and contamination can enter engine when
checking oil level. Clean area around dipstick before
loosening or removing.
2. Clean area around dipstick to prevent debris from falling into
crankcase.
GXT002409—UN—15JUL15
Model Z525E
™Turf-Gard is a trademark of Deere & Company
™Plus-4 is a trademark of Deere & Company
™Plus-50 is a trademark of Deere & Company
Service Engine
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