4 MAINTENANCE
4.4
ENGINE _________________________________________________________________________________
IMPORTANT: A separate Engine Manual, prepared by the engine
manufacturer, is supplied with this mower. Read the Engine Manual
carefully until you are familiar with the operation and maintenance
of the engine. Proper attention to the engine manufacturer's
directions will assure maximum service life of the engine. To order
replacement engine manuals contact the engine
The proper break-in of a new engine can make a considerable
difference to the performance and life of the engine.
NOTICE
The mower is designed to operate and cut most efficiently at the
preset governor setting. Do not change the engine governor
settings or overspeed the engine.
During the break-in period, Jacobsen recommends the following:
1.
During the first 50 hours of operation, a new engine should be
allowed to reach an operating temperature of at least 140°F
(60°C) prior to operation at full load.
4.5
ENGINE OIL ______________________________________________________________________________
Check the engine oil at the start of each day before starting the
engine. If the oil level is low, remove oil filler cap, and add oil as
required.
Perform initial oil change after first 25 hours of operation and every
100 hours thereafter. See Engine Manual.
Use only engine oils with API classification CD/CE.
Above 77°F (25°C)
SAE 30W or SAE 10W30/10W40
32 to 77°F (0 to 25°C)
SAE 20W or SAE 10W30/10W40
Below 32° (0°C)
SAE 10W or SAE 10W30/10W40
See the engine manufacturer's Engine Manual for detailed
service information.
After adding or changing oil, start and run engine at idle with all drives
disengaged for 30 seconds. Shut engine off. Wait 30 seconds and
check oil level. Add oil to bring up to FULL mark on dipstick.
18
2.
3.
manufacturer.
4.
5.
If the injection pump, injectors, or the fuel system require service,
contact an authorized Jacobsen Dealer.
Important: The normal engine operating temperature is less than
220° F (104° C). If the engine temperature rises by more than 10° F
(6° C) above normal, there is an indication that the cooling system
may not be functioning properly.
The warning horn will sound when the temperature reaches 230° F
(110° C). To prevent damage to the engine, never allow the engine to
operate above 230° F. Stop the machine, disengage all drives and
operate the engine at low idle for 5 minutes.
Check the engine oil level twice daily during the first 50 hours of
operation. Higher than normal oil consumption is not
uncommon during the initial break-in period.
Change engine oil and oil filter element after first 25 hours of
operation.
Check and adjust fan and alternator belts.
Refer to Section 6.3 and Engine Manual for specific
maintenance intervals.