Gravely Pro-Master PM 320 HD Owner's/Operator's Manual page 14

Deck Lift Lever
1
2
3
OF3310
Cut Height Lever
OL4810
Oil Pressure Warning Light
OG0601
4. Check for external damage to engine.
To test oil pressure warning light, turn ignition
key to the run position. Light should turn on.
Parking Brake Lever
1
2
OF1332
Push lever forward to
FLOAT (1) position for
mowing.
Place lever in HOLD
(2) position to hold
mower in current
position.
Pull lever backwards
to LIFT (3) position to
lift mower.
IMPORTANT: Disenga
ge PTO before pulling
lever back to LIFT.
To raise attachment,
move lever backward.
To lower attachment,
move lever forward.
To hold attachment in
place, release lever.
If light turns on during
operation:
1. Stop unit and engine.
2. Wait five minutes.
3. Check engine oil level
and fill if necessary.
Pull lever backward to
engaged (2) position to
activate parking brake.
Push lever forward in
disengaged (1)
position to deactivate
parking brake.
PTO Switch
1
2
OE0261
Hour Meter
Press and release the toggle button to shift
between different functions.
Press and hold the toggle button to reset the
timer or clear a service message.
The hour meter has three functions:
Hour Meter: measures the amount of time
the engine has been run. This time cannot be
cleared.
Timer (TMR1): measures the time spent on
individual jobs.
Press and hold the toggle button to reset the
timer to zero. TMR1 will then start measuring
engine run time until it is reset to zero again.
Service Alert (Chg Oil, Chg H Oil & Filter,
SVC Airfilter): reminds operators of the
maintenance interval for changing the engine
oil, changing the hydraulic oil and filter and
servicing the air filter.
The alert starts counting down two hours
before the maintenance is due. The meter
flashes the word, "Now," when it reaches the
maintenance time.
Press and hold the toggle button to reset the
maintenance clock to zero after performing
the service.
NOTE: The hour meter is preprogrammed for
the initial oil change at 25 hours and for 100
hours thereafter. The hour meter is
programmed for the initial hydraulic oil and
filter change at 75hours and for 400 hours
thereafter.
Display
GB - 14
The power take-off switch is
used to engage and disengage
the attachment.
Lift switch to engage (1)
attachment.
Push switch down to
disengage (2) attachment.
Toggle Button