62
375 John Deere Standard and Aftercooled/Filtered Operator’s Manual and Parts List
SECTION 4
Shutdown System/Annunciator Module (SSAM)
Monitors the compressor safety system for conditions
requiring shutdown. The annunciator on the instrument
control will ash the applicable shutdown code.
Blowdown Valve
Vents sump pressure to the atmosphere at shutdown.
Idle Warm-Up Control
Keeps the compressor inlet valve closed for reduced
compressor load at start-up. When the compressor is
warmed-up, the handle is turned from the START to the
RUN position for full operation.
Pressure Selector Switch (H and HH Models)
Sets compressor operation in the LOW range from 80 to
110 psig (5.6 to 7.6 bar), or in the HIGH range from 80 to
165 psig (5.6 to 11.4 bar) on H models, and from 80 to 220
psig (5.6 to 15.2 bar) on HH models.
INITIAL STARTUP/SHUTDOWN 4.3
PROCEDURE
Startup
Perform the following actions when starting the
compressor for the rst time:
Ensure that the compressor is on a level surface. (If 1.
the compressor is on an uneven surface, the uid
sight gauge readings will not be accurate, and it will
not be possible to determine if uid levels are too low.) (I)
Check the oil and uid levels in the engine and 2.
compressor: add oil and/or uid if necessary.
Fill the fuel tank and drain any water from the fuel/ 3.
water separator.
Crack open one service line.4.
Place the WARM-UP control in the START position.5.
Place the PRESSURE SELECTOR switch to the LOW 6.
position (H and HH models).
Press the ENGINE SWITCH to the ON position.7.
Momentarily press the ENGINE SWITCH to the 8.
START position to engage the starter: release the
switch when the engine starts.
After 30 seconds (the annunciator light will go off after 9.
30 seconds) Turn the IDLE WARM-UP SWITCH from
START to RUN to put the compressor in full operation.
Close all doors to maintain proper noise level.10.
(I) The radiator is lled with a 50/50 mixture of ethylene
glycol and water. All engines receive Supplemental
Coolant Additive (SCA) at the factory before shipment.
Refer to the Engine Operator’s Manual for specic
requirements.
Shutdown
Close the service valves and run the compressor for 1.
approximately ve minutes to allow the compressor to
cool down.
Place the pressure selector switch in the low position 2.
(H and HH models)
Press the ENGINE SWITCH to the OFF position after 3.
ve minutes. When an emergency shutdown is
required, IMMEDIATELY press the EMERGENCY
SHUTDOWN BUTTON.
RESTART PROCEDURE4.4
After running and shutting down the compressor for the
rst time, perform the following actions when restarting the
compressor:
Check engine oil, engine coolant, and fuel levels.1.
Check the compressor uid level (sight glass) and 2.
drain any water from the fuel/water separator.
Check the dust collectors and clean if necessary.3.
Crack open the service valve.4.
Place the WARM-UP control in the START position.5.
Place the PRESSURE SELECTOR switch to the LOW 6.
position (H and HH models).
Press the ENGINE SWITCH to the ON position.7.
Momentarily press the ENGINE SWITCH to the 8.
START position to engage the starter: release the
switch when the engine starts.
After 30 seconds (the annunciator light will go off after 9.
30 seconds) Turn the IDLE WARM-UP SWITCH from
START to RUN to put the compressor in full operation.
Close all doors to maintain proper noise level.10.
To shut down the compressor, see 11. Shutdown on page 58.
To Next Page
Loading...
