EN - 20
HOUR / MAINTENANCE METER
Hour Meter-only Models
Hour meter measures engine runtime and
cannot be reset.
Maintenance Models
See Figure 17.
When the key is in the on position, the Timer
mode displays. Press the Mode button to
toggle between different modes.
Timer: Measures engine runtime until reset.
To reset the timer, press the Mode button to
select TMR1 mode and then hold Mode
button for 3 seconds.
IMPORTANT: Turn ignition key to the off
position when unit is not in use. Some meters
may count hours when the key is in the on
position, even if the engine is off. This results
in inaccurate maintenance intervals.
Service Alerts: Counts down hours until
service is needed and displays "Now" when
service is due. Service time is measured for:
• Engine oil and filter changes (CHG OIL)
• Hydraulic oil and filter changes (CHG H
OIL)
• Air filter service (SVC AIRFILTER)
The service intervals preset into the hour
meter are:
• Hydraulic oil and filter: First 75 hours and
every 400 hours thereafter
• Engine oil and filter: First 25 hours and
every 100 hours thereafter
• Air filter: Every 100 hours
NOTICE: The preset engine oil services
intervals are normal recommended intervals.
Specific engine manufacturer’s
recommendations may vary.
To clear a service message, press the Mode
button to select Service Alert mode and then
hold the Mode button for 3 seconds.
CHECK SAFETY INTERLOCK
SYSTEM
Check function of the Safety Interlock System
by performing the tests below. Contact your
Gravely dealer for repair if any of the tests
fail.
CHECK PARKING BRAKE
1. Park unit on a flat, level surface.
2. Position steering levers in neutral.
3. Engage parking brake.
4. Stop engine and wait for moving parts to
stop and for hot parts to cool.
5. Bypass transaxles. See Move Unit
Manually on page 18.
6. Push unit forward.
• If unit does not move forward, no
adjustment is needed.
• If unit moves forward easily, adjust the
brake lever.
CHECK ENGINE OIL
NOTICE: Engine oil level must be maintained
at correct level or engine damage may occur.
Refer to engine manual.
CHECK TIRE PRESSURE
See Specifications on page 40 for
recommended tire pressure.
Test Steering
Levers
PTO Parking
Brake
Result
Starting Interlock
1 Neutral Off On Engine
starts.
2Forward,
Neutral,
Reverse
On On or
Off
Engine does
not start.
3Forward,
Neutral,
Reverse
On
or
Off
Off Engine does
not start.
Operating Interlock (Engine On)
4 * Forward,
Neutral,
Reverse
On On or
Off
Engine
shuts off.
5 * Forward,
Neutral,
Reverse
On
or
Off
Off Engine
shuts off.
* When operator lifts off seat.
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