Press Ram Adjustment and Maintenance

Slide Block Disassembly

When seal ring needs to be replaced, during inspection of ball bowl face or overhaul, slide block shall be disassembled. The disassembly procedures are as follows

1 Place slide block on Bottom Dead Center position and cushion the bottom surface of slide block with wood block

2 Disconnect air source and power supply and completely release the gas in balance cylinder

3 Disassemble the inlet pipe on the air-oil pump at the back of slide block and the control line of microswitch

4 Disassemble the connecting screw between balance cylinder and slide block

5 Cushion the gap between connecting rod and cover plate with thread waste, in order to make connecting rod in vertical position

6 Disassemble connecting rod bearing cover

7 Disassemble guide rail and pay more attention to protecting guide rail gasket

8 Lift slide block with crane, remove wood filling, slowly lower slide block and pull it out

9 Remove the chain and chain wheel at the back of slide block

10 Disassemble the setscrew on cover plate and remove connecting rod and cover plate to disassemble worm wheel, and prevent from the spill of the lubricating oil in the worm wheel

11 Remove the oil drain plug at the right side of slide block body and drain lubricating oil

12 Disassemble slide block braking motor and inlet connector, and prevent

13 Remove oil cylinder from slide block

14 Turn the cover plate on the bottom of oil cylinder in a counter-clockwise direction and remove it, so that piston and ball bowl can be removed

15 Remove the oil drain plug at the left side of slide block and drain oil

Slide Block Assembly

The reverse procedures of the above procedures are assembly procedures

1 All the parts shall be strictly cleaned, absolutely preventing dust and other contaminants entering

2 O seal ring shall be coated with grease, in order to prevent from being damaged during assembly

Slide Block Guide Rail

For Slide Block Guide Rail Structure Diagram, see Figure 4 (Slide Block Guide Rail)

Slide block guide rail regards the left-side guide rail as datum line. The precision of gib spacers ①, ② and ③ relative to the worktable surface of the body has been ensured during machining, therefore, for the adjustment of slide block guide rail, only gasket and the head screw and tie screw in right-side guide rail shall be adjusted.

After adjustment, tighten them in turn according to the sequence from clamp bolt to head screw and tie screw and ensure that the screws in upper and lower position are tightened crosswise.