Miller Bobcat 200 Air Pak Diesel Owner's Manual page 67

Trouble
Oil in compressor air cleaner.
Water in compressor oil. Oil appears
milky.
Water in air from compressor.
Compressor case retains pressure after
shutdown.
B. Battery Charge/Jump-start/Crank Assist Troubleshooting
Trouble
No battery charge/jump start/crank as-
sist output.
Charging current turns on and off while
charging battery.
C. Generator Power Troubleshooting
No or low generator power output at
AC receptacles.
Low power output at AC receptacles.
High power output at AC receptacles.
Erratic power output at AC
receptacles.
D. Welding Troubleshooting
Trouble
No weld output or generator power out-
put at AC receptacles.
No weld output; generator power out-
put okay at AC receptacles.
No weld output during generator power
load.
Low weld output.
.
A complete Parts List is available at www.MillerWelds.com
Have Factory Authorized Service Agent verify compressor inlet valve is operating properly.
Operate air compressor continuously under pressure to allow the compressor to reach operating temper-
ature. Water in oil is often caused by intermittent use in which compressor does not reach temperature.
If oil still appears milky, change oil, oil filter, and air/oil separator.
Some water in air from compressor is normal. Install air line water separator if necessary.
Have Factory Authorized Service Agent check compressor blow down valve.
Be sure battery is connected.
Check polarity.
Be sure Process switch is in 12V or 24V position according to the voltage of the battery being charged.
Be sure Charge/Weld switch is in charge position.
Check battery voltage. Charging may be finished.
Have Factory Authorized Service Agent check battery charge circuitry.
Clean and tighten battery connections, if necessary. Clean battery terminals and posts with baking soda
solution and rinse with clear water.
Check condition of battery.
Reset supplementary protector(s) (see Section 11-7).
Access service menu to view engine speed (see Section 6-4). Verify engine speed increases to 3600 rpm
with auxiliary power load.
Have Factory Authorized Service Agent check brushes and slip rings and PC2.
Be sure all equipment is disconnected from receptacles when starting unit.
Access service menu to view engine speed (see Section 6-4). Verify engine speed increases to 3600 rpm
with auxiliary power load.
Verify there is no weld load.
Access service menu to view engine speed (see Section 6-4). Verify engine speed increases to 3600 rpm
with auxiliary power load.
Check fuel level.
Access service menu to view engine speed (see Section 6-4). Verify engine speed increases to 3600 rpm
with auxiliary power load.
Check receptacle wiring and connections.
Have Factory Authorized Service Agent check brushes and slip rings and PC2.
Be sure all equipment is disconnected from receptacles when starting unit.
Check and reset circuit breaker CB1.
Have Factory Authorized Service Agent check brushes and slip rings and PC2.
Check weld connections.
Be sure Charge/Weld switch is in weld position.
Have Factory Authorized Service Agent check PC1 and weld/battery charge inverter.
Reduce generator load.
Check Weld Output control setting.
Remedy
Remedy
Remedy
OM-281710 Page 63