by mechanic » Mon Mar 21, 2016 4:48 pm
Sounds like a reset problem ! First is the lift lever cocking the machine properly ? Is the slide reset push bar pushing the slides forward enough for the 5th click to engage? The spring tension on the slides should be a minimal issue, as long as the reset push bar pushes the slides forward enough for the 5th click to engage. The spring tension will make the slide go back hard and make a loud noise when they do. The 5th click sets right behind the master slide at the bottom, you would have seen it when you took the slides out for cleaning. Play the mech outside the cabinet and watch to see if the 5th click engages and the horiz. fingers go behind the slides, use a flash light to get a good view. If it does not engage then check to see if the lift pin needs to be adjusted or the slide rest bar is worn down. Lift pin is on the main bar that goes across the back, it has a square head screw with a nut below the head. Loosen the nut first then the screw and move the lift pin just a hair 1/64 or less. Also check the end of the lift pin as it may be worn, this happens occasionally. Retighten the screw and test the mech, if it continues to have issues after the second try then the problem may be the reset bar being worn which is more difficult as it will need to be removed and built up with some welding and reground to prevent other problems.