A CL65 CAPT DESCRIBED A PITCH TRIM PROB HE WAS HAVING AFTER DEPARTING MKE.

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ON DEP OUT OF MKE; I WAS HAND-FLYING THE ACFT. PASSING 9000 FT; I NOTICED THAT I COULD NOT TRIM THE ACFT PAST 5 UNITS OF PITCH TRIM; AS WE WERE ACCELERATING. I HAD THE FO TRY APPLYING NOSE DOWN TRIM AND HE RECEIVED THE SAME RESPONSE. I ELECTED TO ENGAGE THE AUTOPLT TO SEE IF IT WOULD BE ABLE TO TRIM. UPON AUTOPLT ENGAGEMENT; THE AUTOPLT PITCH TRIM CAUTION MESSAGE APPEARED. PER THE COMPANY CHKLIST; WE DISCONNECTED THE AUTOPLT. WE LEVELED OUT AT 11000 FT AND FOUND THE AIRPLANE TRIMMED FOR LEVEL FLT AT A MAX SPD OF 250 KIAS. WE CALLED OUR COMPANY MAINT AND THEY TOLD US TO TRY TRIMMING NOSE UP THEN BACK DOWN TO SEE IF IT WOULD REMEDY OUR SIT. WE WERE ABLE TO TRIM NOSE UP AND NOSE DOWN BUT COULD NOT TRIM DOWN PAST 5 UNITS OF TRIM. BECAUSE THERE WERE NO CAUTION OR STATUS MESSAGES DISPLAYED ON THE EICAS OR FLT CTL PAGE AND NOT BEING ANY CHKLIST TO FOLLOW; MAINT CONCLUDED THAT SINCE WE COULD OPERATE NORMALLY UP TO 250 KIAS; THAT WE COULD BRING THE PLANE BACK TO OUR DEST OF CVG. WE THEN TALKED TO DISPATCH WHO COMPUTED A NEW FUEL BURN AT 11000 FT AND 250 KIAS AND SAID THAT WITH OUR FUEL ONBOARD WE COULD CONTINUE TO CVG AND LAND WITH THE REQUIRED FUEL ONBOARD. I DISCUSSED THE SIT WITH THE FO AND WE BOTH CONCLUDED THAT WE COULD SAFELY CONTINUE TO CVG. WE BRIEFED THE FLT ATTENDANT AND THE PAX OF OUR SIT. WE LANDED AT CVG AND THE FLT CONCLUDED WITH NO FURTHER EVENTS. WE UTILIZED CRM SKILLS TO THE MAX. COMPANY DISPATCH AND MAINT WERE BOTH CONSULTED; THE ENTIRE FLC WAS BRIEFED AND ALL OPINIONS DISCUSSED.