A 34-year-old vending service man was arrested yesterday as Montgomery County vice squad detectives continued a crackdown on illegal gambling in the county.

Six vice squad raids Dec. 17 on county fraternal organizations netted 10 gambling machines, and left assorted Elks and Eagles surprised and vexed. The brotherhoods -- three Elks Clubs, an Eagles club, a VFW post and an American Legion Hall -- maintained that the machines were not being used for gambling.

The machines did not disgorge money, but police said they fell under the Maryland definition of slot machines, which are illegal, and authorities further charged that players could turn in credit accrued on the machines for money.

Thursday evening vice squad officers arrested John Patrick Chucuski at the Potomac Vending Service, 15922 Luanne Dr., Gaithersburg. Police spokesman Phillip Caswell said that Chucuski had serviced the gambling machines at the fraternal organizations.

Four illegal gambling machines were seized from the shop, and Chucuski was charged with possession of slot machines, a misdemeanor punishable by up to one year in jail and $1,000 in fines.

Chucuski, who lives at 7523 Lowell La., Ijamsville, in Frederic County, was released on personal bond.

No charges have been filed against any of the fraternal organizations, but the investigation is continuing.