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Section 5: OPERATION Page 30
OM-ZR-May15
When the engine is warmed-up and the temperature of the hydraulic oil exceeds 75°F (24°C), full speed
operation may begin. Adjust the throttle so that the engine is running at the high idle rpm indicated below.
The engine should maintain the full load rpm indicated below under load.
Power Unit
Vibrator
High Idle Full Load
Low Idle
350GZ 18ZR 1950
1850
700
450GZ 18ZR/25ZR 2100
2000
700
595GZ 25ZR 1850
1750
700
700Gz 50ZR
1800
1700
700
800GZ 50ZR 1800
1700
700
Hydraulic oil temperature is monitored by the Hydraulic Oil Temperature Switch (TS2). Hydraulic oil
temperature should never exceed 175
o
F (80
o
C). If hydraulic oil temperature exceeds 175
o
F (80
o
C), the engine
will be automatically shut down by the Hydraulic Oil Temperature Switch and the HYD. OIL TEMP. HIGH light
will be turned on.
!WARNING – Equipment!
Operation of the equipment with hydraulic oil above 175°F (80°C) may result in
damage to hydraulic components.
Full Speed Operation
1. Stop the vibrator by turning the MAIN (REV-OFF-FOR) switch to OFF.
2. If the engine has not been warmed up, the engine may be shut down without a cool-down period.
Turn the ENGINE POWER switch to OFF.
3. If the engine has been warmed up (running at above 185
o
F [85
o
C] for 15 minutes or more), the engine
should be cooled down before shut-down.
a. If the engine has not been idled down, reduce engine rpm to 1200 for 2 minutes, then reduce
to 700 for 2 more minutes.
b. If the engine has been idled down, increase engine rpm to 1200 for 2 minutes, then reduce
to 700 for 2 more minutes.
c. After the 4-minute cooling period, turn the ENGINE POWER switch to OFF.
Engine Shutdown
Emergency Stop
In an emergency, the engine and vibrator may be stopped by pushing the EMERGENCY STOP button on either
the control pendant or the control panel.
Engine shutdown may cause hydraulic clamp to open.
Use the emergency stop button only in actual emergencies as the required engine
cool-down period is eliminated.
!WARNING – Safety!
!WARNING – Equipment!