7. operating the multipress - Grass

7. OPERATING THE MULTIPRESS7-3 Setting the Multipress Vertical Bore Head7-301 Setting the vertical material thickness Illustration 7-301-01No tools are necessary.It is not the desired drilling depth which is set with the Multipress, but the thickness of the workpiece to bebored. The indicator is adjusted to give a drilling depth of 13 mm by using a drill bit of 57 mm of length.Calculating the setting: + Drill bit length for example 57 mm- Machine constant 44 mmfor different drilling length + Material thickness for example 35 mmfor different drilling depth - Desired drilling depth for example 16 mm= Setting 32 mm- Loosen the star knob “1” by hand.- Turn the knurled screw “2” clockwise (depth stop “19” [illustration 4-002-03] moves upwardwith the thread). The drilling depth decreases 1 mm with each turn.- Tighten the star knob “1”.Warning: The setting can be affected by the depth gauge. See 7-302.7-302 Setting the vertical depth gauge caliper (accessory) Illustration 7-302-01Required tool:2.5 mm Allen keyIn the case of a Multipress with a depth gauge, the drilling depth is set on the depth gauge and not thethickness of the workpiece. The depth gauge does not have a scale. The dimension is determined by testboring. When operating the depth gauge, the depth stop (see section 7-301) must be set at less than 16.Functional description of depth gauge:When drilling with the vertical bore head, the bore head moves down until the depth gauge’s adjusting componentcomes into contact with the workpiece. The activating pin is spring-loaded. When the bore headcontinues its downward movement, the activating pin releases the depth gauge’s pneumatic valve “7”(illustrations 4-006-01and 4-006-02) and thus initiates the upward movement of the vertical bore head. Thedrilling depth is defined as the difference between the adjusting component and the drill bit tip. The drillingdepth is independent of the workpiece’s thickness. To a certain extent, the drilling depth is dependent onthe bore head’s operating speed. The faster the operating speed, the larger the drilling depth. However,variances only occur in the range up to 0.5 mm.- Turn off the main switch at the switchgear cabinet or on the electric motor.- Lift the front gearbox cover “3”.- Loosen the set screw “1” with a 2.5 mm Allen key.- Slide the adjusting component “2”. (Sliding it up results in a larger drilling depth).- Tighten the set screw “1”.- Test drill and check the result. If necessary, repeat the above steps.7-303 Setting the vertical spacing of the bore holes Illustrations 7-303-01 and 7-303-02No tools required.- Open and pull out the lever “1”.- Turning the manual wheel “2” clockwise increases the hole spacing. One turn corresponds to 2 mm. Thespacings from the line boring to the line boring in the index plate corresponds to a difference of about 0.066mm in the hole spacing. Read the hole spacing on the position indicator “3”. The hole spacing shouldalways be adjusted from a small to a larger value.- Play can be compensated by adjusting the threaded spindle. An adjustment from 17 mm to 15 mm takestwo steps: a) from 17 mm to 12 mm, and b) from 12 mm to 15 mm.- Engage the lever “1” into the hole pattern in the index plate and fold down.The star in your cabinet53