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Onan CCKA / Miller welding-generator


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  #1  
Old 11-24-2005, 12:08 PM
Jeffl57 Jeffl57 is offline
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Question Onan CCKA / Miller welding-generator

Looking for cheap source for parts to fit a CCKA-MS/2748J that is on a Miller AEAD 200LE Welder.
Also any comments/experience with this machine would be appreciated.
jeffl57@netzero.com
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  #2  
Old 11-24-2005, 01:02 PM
Andy Siekman Andy Siekman is offline
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Default Re: Onan CCKA /miller weld-gen

Jeff,I have the same outfit,all I've ever done is change oil and filter. And use it a lot,it has never failed to start, even below zero. Probably time to tune mine up also. Very rugged and dependable. 1983 model I think,bought it used in 89 and used it here on farm. I think you'll be well satisified with it. Andy.
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Old 12-16-2005, 08:27 PM
KidNV KidNV is offline
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Default Re: Onan CCKA /miller weld-gen

Jeff or Andy, do either one of you by chance have the engine repair book for a CCKA-MS/3718J ? I need a copy, to borrow, or to buy one for my elderly neighbor, who bought an AEAD-200LE with the engine in a basket..yes..it was..

I tried the Miller site, only found the welder manual, nothing for th engine.

Thanks
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Old 12-17-2005, 10:26 AM
Andy Siekman Andy Siekman is offline
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Default Re: Onan CCKA /miller weld-gen

KidNV,sorry,I don't have a repair manual for mine either. You might try Jensales,they have a lot of manuals. Good luck Andy.
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Old 09-18-2006, 10:26 PM
KidNV KidNV is offline
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Default Re: Onan CCKA /miller weld-gen

Thanks anyway Andy. Just been too busy the last few months..
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Old 10-02-2006, 09:55 PM
Arthur Arthur is offline
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Default Re: Onan CCKA /miller weld-gen

Quote:
Originally Posted by Andy Siekman View Post
Jeff,I have the same outfit,all I've ever done is change oil and filter. And use it a lot,it has never failed to start, even below zero. Probably time to tune mine up also. Very rugged and dependable. 1983 model I think,bought it used in 89 and used it here on farm. I think you'll be well satisified with it. Andy.


Hello Andy,

I have just finished getting one back to life and still can't find a number on the engine.It is an AEAD 200LE but the control board don't look just like anything I see on the PDF. The AC/DC welding changes are made by plugging into different holes,not by switches. I have been a welder for many yrs.,but never with a Miller. It also has 5kW ac 60 hz,but what is the ac 100 hz for,tig maybe? I would like to know what engine I have if you can help me with that. It runs real good and everything seems to be ok,I have picked up some cables,so I'll give it a try out after awhile. By the way,it's running with about 28 to 30 oil pressure,hows that sound ? Thanks for any advice, Arthur
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Old 04-17-2009, 10:37 PM
g6ypk g6ypk is offline
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Default Re: Onan CCKA /miller weld-gen

Hi jeff. We have the same setup exactly. Problem is, part aint cheap! Unless, of course you come across a scrap welder/genny, and the likelyhood is small, though I have seen one for sale on another site that was in Floria with no engine.

I'm scapping mine. It has a wonderful 18 HP engine that kicks off first click, but the generator stalls the engine when in the S1 is switched to power from weld; so I guess the cost of repair outweighs the viabilty of loving restoration.

I'm thinking the generator windings are short (abuse by the previous oner?). Heck I got the machine for free, and the only cost to me was $23 for an new (SR2) bridge rectifier.

Kinde regards
Antony g6ypk@yahoo.com
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Old 04-17-2009, 10:49 PM
g6ypk g6ypk is offline
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Default Re: Onan CCKA /miller weld-gen

A. Exciter Circuit
1. The exciter and main revolving fields are directly
coupled to the engine and revolve at approximately
3000 rpm for weld and 100 Hz power. The
combination of engine speed and excitation current
in the revolving field coils determines voltage
levels in the stator windings.
2. The ac amperage produced by the exciter winding
is rectified by integrated rectifier 5R2. The dc
amperage produced by 5R2 is applied through
the brushes and slip rings to the main revolving
field thereby increasing the strength ofthe revolving
magnetic field.
3. The ac amperage produced by the interaction of
the exciter revolving field and exciter stator is
supplied to the 115 volts ac receptacle RC1.
B. Weld Output Circuit
4. FINE AMPERAGE control Ri adjusts the level of
excitation current flowing in the main revolving
field, which in turn affects the output at the weld
output receptacles and auxiliary power terminal
strip iT.
5. The main revolving field generates an ac voltage
at the weld winding. The voltage generated depends
on engine speed and the setting of the
FINE AMPERAGE control Ri.
6. The tapped reactor AC-Z isa variable impedance
device which modifies weld winding output. As
turns of wire increase, AC-Z impedance increases
causing current flow to decrease. Range
switch S5 selects the coarse range of weld output
by selecting the impedance of reactor AC-Z. AC
output is then applied to the ac weld output receptacles.
7. The main rectifier SRi rectifies ac output of the
weld windings to dc.
8. Stabilizer DC-Z is designed to smooth the welding
arc by limiting the current changes. DC output
is then applied to the dc weld output receptacles.
TM-411 Page 22
C. Automatic Idle Control Circuit (Electric Start
Models Only)
Automatic Idle Control Board PCi decreases engine
speed to idle/power speed (1860 rpm) when it no longer
senses a weld or 100 Hz receptacle load.
With AUTO IDLE switch S4 in the ON position (S4 is
open), WELDIPOWER switch 51 in the WELD position,
and IGNITION switch S2 in the ON position, the Automatic
Idle Control Circuit operates as follows:
9. The engine idles as long as no weld or power
(from 11 5V 9A AC 100 Hz receptacle only) load is
applied to the generator.
When a load is applied, current transformer OTI
senses current flow and supplies voltage to pins F
and H of PCi. PCi transfers battery voltage to
throttle solenoid TSi, and causes TSi to energize.
As long as CTi senses a load and supplies
voltage signal to PCi, TSi remains energized
and the engine runs at full throttle.
When the load is removed, battery voltage is removed
and a timing circuit in PCi begins to time
out. ThePC 1 timer circuit times out after a few seconds,
TS1 deenergizes, and the throttle closes
to idle.
10. When WELD/POWER switch 51 is in the WELD
position, and AUTO IDLE switch S4 is in the OFF
position, TS1 remains energized and the engine
continually runs at weld speed (3000 rpm).
D. Auxiliary Power Circuit
11. When the engine is running at idle/power speed
(1860 rpm), the WELD/POWER switch 51 is in
the POWER position, and the FINE AMPERAGE
control Ri is at maximum, the Auxiliary Power
Circuit operates as follows:
The ac voltage developed across the static power
winding is determined by the main field current
applied through the slip ringsand brushes and the
setting of Ri. The combination of output from the
regulator power winding and the exciter produce
the auxiliary power output.
12. PC2 controls the output of the regulator power
winding. P02 compares actual voltage output
from terminal strip iT to a preset voltage produced
on PC2. PC2 then regulates output of the
regulator power winding to boost main field as
necessary to produce constant output at the 120
volts ac duplex receptacle.
When Si is in the WELD position, the exciteramperage
goes through diode D59 of P02 before
being applied through the brushes to the slip
rings. PC2 does not affect exciter amperage in
this mode.
TM-411
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  #9  
Old 04-18-2009, 07:03 AM
Gunny Gunny is offline
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Default Re: Onan CCKA /miller weld-gen

Engine parts can be gotten from A & P Electric (803)791-0910. Ask for Pinky the service manager.

Just tuned mine up, in an Allis 616 tractor. 1971 vintage, runs very well. Fuel pump went out, a new one from Onan, $145.00. Rebuild kit was $40. Got to pull off the intake manifold to get the fuel pump out. Going to turn over 10,000 hours in a couple of weeks. Run it with 10W30 synthetic, gets an oi and filter chnage every year, new spark plugs every other year (even numbered). Blow it off with compressed air every time I'm done with it.
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  #10  
Old 04-18-2009, 07:36 AM
Isaac-1 Isaac-1 is offline
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Default Re: Onan CCKA /miller weld-gen

If anyone following this thread is looking for them, I noticed someone just listed a pair of old stock CCK heads on eBay yesterday. I have no idea if this is a hard to find item or not.

Ike
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  #11  
Old 04-18-2009, 08:34 AM
Onan boy Onan boy is offline
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Default Re: Onan CCKA /miller weld-gen

Any pictures of your machine. ??

P218G-I/ ???? spec ? is use on welding machine very often.
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  #12  
Old 04-18-2009, 08:40 AM
Onan boy Onan boy is offline
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Default Re: Onan CCKA / Miller welding-generator

I have the PDF engine manual if somebody care.

If you want to buy it onan #927-0754
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  #13  
Old 02-09-2011, 10:10 PM
iwhoss270 iwhoss270 is offline
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Default Re: Onan CCKA /miller weld-gen

Quote:
Originally Posted by g6ypk View Post
.

I'm scapping mine. It has a wonderful 18 HP engine that kicks off first click, but the generator stalls the engine when in the S1 is switched to power from weld; so I guess the cost of repair outweighs the viabilty of loving restoration.
Hi Y'all, I have a great need for a CCKA, I'm hoping somebody has one they wish to get rid of... I need a rod, piston, etc.. any help, or leads will be most appreciated.... HOSS
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