HOSE AS 5308075 - Caterpillar

Excessive Noise
If the generator has incurred a significant damage from an outside force or internal mechanical failure.
Table 12
Problem    Cause    
Short-circuit     Broken or damaged coupling    
Broken or bent shaft
Shifting or short circuit of main field
Fan damaged or loose on shaft
Damage to rotating diode ar AVR Test and Adjust
Adjusting Generator Speed
Illustration 7 g03341441
Adjustments are performed with the "V3" screw (1). Turning screw to the Right (clock wise) will increase speed and turning Screw left (counter clock wise) will decrease speed.
Illustration 8 g03341444
For making adjustments that require a load is necessary activate the heating element on the screed. A load can be applied to the generator by turning on the screed heater with switch (5) on control panel (4)
Table 13
Test with Engine at Maximum RPM ( No Generator Load)    
Component    Specifications    
Engine Speed (RPM)     2350(-80 +20)    
Pump (Charge) Pressure    
6000 1000 kPa (870 145 psi)    
Pump (Charge) Pressure (After Pressure Reducer    
2000 kPa (290 psi)    
Generator Rotor Speed (RPM)     1450 - 1850    
Table 14
Test with Engine at Minimum RPM ( With No Generator Load)    
Component    Specifications    
Engine Speed (RPM)     1150(-80 +20)    
Pump (Charge) Pressure    
6000 1000 kPa (870 145 psi)    
Pump (Charge) Pressure (After Pressure Reducer    
2000 kPa (290 psi)    
Generator Rotor Speed (RPM)     1450 - 1850    
Table 15
Test with Engine at Maximum RPM ( With Generator Load)    
Component    Specifications    
Engine Speed (RPM)     2350(-80 +20)    
Pump (Charge) Pressure    
28990 kPa (4205 psi)    
Pump (Charge) Pressure (After Pressure Reducer    
2000 kPa (290 psi)    
Generator Rotor Speed (RPM)     1450 - 1850    
Table 16
Test with Engine at Minimum RPM ( With Generator Load)    
Component    Specifications    
Engine Speed (RPM)     1150(-80 +20)    
Pump (Charge) Pressure    
28990 kPa (4205 psi)    
Pump (Charge) Pressure (After Pressure Reducer    
2000 kPa (290 psi)    
Generator Rotor Speed (RPM)     1450 - 1850    Vibration Check
Check the generator for proper RPM with an electrical load and without an electrical load.
Check for proper voltage output.
Illustration 9 g03351901
Check the mounting hardware and condition of the vibration dampers.
Illustration 10 g03351900
Check the generator and the hydraulic motor alignment.Note: If no problems are found using the checks in Steps 1 through 4 it may be necessary to remove the hydraulic motor from the generator.
Remove the generator and continue with the steps.
Illustration 11 g03344843
Check generator bearing (12) .
Check 285-0085 Joint (13) for wear and re-torque bolts.
Illustration 12 g03351927
Check the hydraulic motor for wear.