Engine Will Not Start
- No fuel.
- Check fuel level and add fuel if necessary
- Blocked fuel filter.
- Replace the element
- Low battery voltage.
- Check electrolyte level and add distilled water, and recharge if necessary
- Blocked air filter.
- Clean or replace the element
- Engine problems may have developed.
- Refer to your Engine Manual
- Faulty oil pressure swichgage, water temperature swichgage, discharge temperature swichgage or inlet temperature swichgage.
- Check swichgages accuracy and continuity and replace if necessary
- Blown fuse.
- Check continuity and replace if necessary
- Faulty fuel rack solenoid.
- Check operation and replace if necessary
- Water in fuel.
- Drain water from tank and lines, and add fuel if necessary
- Faulty wiring loom.
- Check continuity and repair if necessary
- Faulty start switch.
- Check continuity and replace if necessary
- Faulty starter motor.
- Check operation and repair or replace if necessary
- Restricted fuel line.
- Remove restriction or replace fuel line if necessary
- Air leaks in fuel line.
- Seal leaks or replace fuel line if necessary
Engine Shuts Down
- No fuel.
- Check fuel level and add fuel if necessary
- Discharge temperature swichgage activating.
- Compression ratio to high: check 3.2 capacity and pressure chart for capacity requirements to maintain required pressures and adjust if necessary
- Cooling airflow is insufficient: check coolers for proper ventilation and clean if necessary; check fan belt tension and adjust if necessary
- Faulty discharge temperature swichgage: check swichgage accuracy and continuity and replace if necessary
- Oil pressure swichgage activating.
- Low oil level: check oil level and add oil if necessary b. Faulty oil pressure swichgage: check swichgage accuracy and continuity and replace if necessary
- Water temperature swichgage activating.
a. Cooling airflow is insufficient: check radiator for proper ventilation and clean if necessary; check fan belt tension and adjust if necessary
- Low water level: check water level and add water if necessary c. Faulty water temperature swichgage: check swichgage accuracy and continuity and replace if necessary
- Blown fuse.
- Check continuity and replace if necessary
- Faulty fuel rack solenoid.
- Check operation and replace if necessary
- Water in fuel.
- Drain water from tank and lines, and add fuel if necessary
- Faulty wiring loom.
a. Check continuity and repair if necessary
- Blocked fuel filter.
a. Replace the element
- Blocked air filter.
- Clean or replace the element
- Engine problems may have developed.
- Refer to your Engine Manual
- Restricted fuel line.
- Remove restriction or replace fuel line if necessary
- Air leaks in fuel line.
a. Seal leaks or replace fuel line if necessary
Unable To Obtain High Discharge Pressures
- Air demand too great.
a. Check service lines for leaks or open valves b. Drill string or hole conditions: check operating manual capacity and pressure chart for capacity requirements to maintain required pressures and adjust if necessary
- Faulty bypass valve.
a. Check valve and repair or replace if necessary
- Faulty concentric valve or valves.
- Perform booster valve check and replace valve or valves if necessary
Discharge Safety Valve “Pops Off”
- Pilot valve is set too high.
- a.Check setting and adjust if necessary
- Leaks or restriction in the control system causing pilot signal pressure loss.
- a. Check control lines and components
- Bypass valve jammed.
- a. Free valve or replace if necessary
- Bypass valve air actuator jammed.
- a. Free air actuator or replace if necessary
- Water in control system causing slow bypass reaction time.
- a. Check all control lines and components
- Faulty discharge safety valve.
- a. Replace discharge safety valve
- Internal restriction in Aftercooler.
- a. Check Aftercooler and clear restriction
- Blocked or faulty discharge check valve.
- a. Check discharge check valve and unblock, or repair or replace if necessary
- Faulty pilot valve.
- a. Check pilot valve and repair or replace if necessary.
- Blocked bypass filter elements.
- a. Check filter elements and clean or replace if necessary
- Faulty bypass pilot regulator.
- a. Check pilot regulator and repair or replace if necessary
Inlet Safety Valve “Pops Off”
- Supply pressure too high.
- a. Check 3.2 capacity and pressure chart for capacity requirements to maintain required pressures and adjust if necessary
- Bypass vent valve blocked or faulty.
- a. Check vent valve and unblock, or repair or replace if necessary
Excessive Oil Consumption
- Engine problems may have developed.
- a. Refer to your Engine Manual
- Faulty concentric valve or valves.
- a. Perform booster valve check and replace valve or valves if necessary
- Oil level too high.
- a. Check oil level and remove excess oil if necessary
- Blocked air filter.
- a. Clean or replace the element
- Excessive ring and piston clearances.
- a. Performing booster valve check will indicate whether further inspection is required and, if necessary, replacement of rings, pistons and cylinders is warranted
Booster Overheating
- Loose or broken fan belt.
- a. Tighten or change fan belt
- Dirty Precooler core.
- a. Clean Precooler core thoroughly
- Faulty discharge temperature swichgage.
- a. Check swichgage accuracy and replace if necessary .
- Internal restriction in Precooler.
- a. Check Precooler and clear restriction
Engine Overheating
- Loose or broken fan belt.
- Tighten or change fan belt
- Dirty radiator core.
- Clean radiator core thoroughly
- Low water level.
- Check water level and water if necessary
- Faulty engine thermostat.
- Check thermostat operation and replace if necessary
- Internal restriction in radiator.
- Check radiator and clear restriction
- Low oil level.
- Check oil level and add oil if necessary
- Faulty water pump.
- Check water pump and repair or replace if necessary
- Other engine problems may have developed.
- Refer to your Engine Manual