OPERATING AND USER INSTRUCTIONS FOR HYDRAULIC EXPANSION CHUCKS To ensure a flawless function of the hydraulic expansion chuck, please observe the following instructions: Usage of straight shank tools according to DIN 1835 and DIN 6535 form (HA) and B (HB) up to Ø 20 mm shaft diameter with tolerance h 6 , precision DIN 69871 ground Ra min = 0.3. Shafts according to DIN 6535 form HE (Whistle Notch) can only be clamped by using reduction sleeves. All hydraulic expansion chucks are standard balanced to G 6.3 15,000 rev/min. Clamping and unclamping the tool ISO 60 1. Clean the holding fixture bore and the tool shaft of grease and dirt. Insert tools up to the end stop. Observe the minimum clamping depth and the length adjustment range. 2. Clamp the shaft by turning the clamping screw up to the end stop. The tool is clamped. To avoid breaking the hydraulic sleeve, do not carry out clamping action without a tool. MA S 403 BT 3. To unclamp the tool, turn the screw approx. 5 to 6 revs. counter clock- wise and remove the tool. Note: Never clamp without a clamped tool in place! 1 2 DIN 2080 DIN 1835 A/DIN 6535 HA DIN 1835 B/DIN 6535 HB up to Ø 20 mm Cleaning HSK-A Attention should be paid to the cleanliness of the holding fixture bore and the tool shaft. Temperature VDI Optimal temperature range between 10 – 50°. Do not use with tempera- tures above 80°. Storage Store the hydraulic expansion chuck untensioned, cleaned and lightly oiled. MORSE Clamping shafts Clamp only tool shafts conforming to the requirements of DIN 1835 form A and form B (up to 20 mm). Torque Tolerance of the tool Clamping-Ø mm Moment (Nm) shaft 6 10 h6 8 20 h6 10 40 h6 12 50 h6 14 80 h6 16 100 h6 18 150 h6 20 200 h6 25 250 h6 32 400 h6 40 550 h6 263