APE 50 - Water Temperature Gauge; Fuel pressure; Ammeter; Air Cleaner Service Indicator

7032 SOUTH 196th - KENT, WA 98032 - (253) 872-0141 / FAX (253) 872-8710
OPERATION / MAINTENANCE MANUAL
MODEL 50 VIBRATORY HAMMER WITH MODEL 260 POWER UNIT
- APPENDIX A -
CUMMINS 6CT8.3 ENGINE
A-1C. ENGINE OPERATION (Continued...)
Water Temperature Gauge
If the temperature gauge reading registers in or near the cold range (white) while operating
under load:
1. Check the water temperature gauge for accuracy.
2. Check the temperature regulators for proper temperature range. Replace regulators if
necessary.
Fuel pressure
If the fuel filter gauge registers in the OUT range, clean the primary fuel filter, if so equipped.
Install new secondary or final fuel filter elements if gauge still registers OUT. See the FUEL
MAINTENANCE INSTRUCTIONS and FUEL SPECIFICATIONS.
Ammeter
The ammeter reading is normal when the indicator is at or on the (+) side of zero, when the
engine is running at rated speed. If indicator is to the left (-) side of zero, investigate and
correct cause.
Air Cleaner Service Indicator
When the gauge indicator locks in the red range, service the air cleaner. With the engine
stopped.
Calibrated Gauges
Calibrated gauges are used on some engines to monitor the engine systems. If an abnormal
engine condition develops, determine and analyze and correct the cause before a failure and
downtime occurs.
If any of the gauges register at or outside the operating limits, investigate and correct any
malfunction. See TROUBLESHOOTING for guidance.
WARNING: Shut the engine down if work on or around the engine is required.
DO NOT OPERATE THE ENGINE WITH THE GAUGES REGISTERING AT OR OUTSIDE
THE LIMITS.
Page A-4