7Installing or removing the bit21003150Clean the bit shank and apply bit grease before installingthe bit.Insert the bit into the tool. Turn the bit and push it in untilit engages.12006318If the bit cannot be pushed in, remove the bit. Pull thechuck cover down a couple of times. Then insert the bitagain. Turn the bit and push it in until it engages.After installing, always make sure that the bit is securelyheld in place by trying to pull it out.To remove the bit, pull the chuck cover down all the wayand pull the bit out.12006333Bit angle (when chipping, scaling ordemolishing)12HR4501CHR4510C 300836212HR4511C3008367The bit can be secured at 12 different angles. To changethe bit angle, depress the lock button and rotate thechange lever so that the pointer points to the symbol.Turn the bit to the desired angle.Depress the lock button and rotate the change lever sothat the pointer points to the symbol. Then make surethat the bit is securely held in place by turning it slightly.12HR4501CHR4510C300836312HR4511C30083681. Pointer2. Change lever3. Lock button1. Change lever2. Pointer3. Lock button1. Pointer2. Change lever3. Lock button1. Change lever2. Pointer3. Lock button1. Bit2. Chuck cover1. Bit2. Chuck cover1. Bit shank2. Bit grease