Epiroc MB 750 User Manual

Contents
© Construction Tools GmbH | 3390 5194 01 | 2023-04-28
Original Instructions
5
7.4 Lubrication ........................................................................................................................................................ 41
7.4.1 Checking the lubricant film .............................................................................................................................. 41
7.4.2 Automatic lubrication ....................................................................................................................................... 42
7.4.3 Replacing the lubricant cartridge..................................................................................................................... 42
7.4.4 ContiLube®II operation .................................................................................................................................. 42
7.4.5 Manual lubrication ........................................................................................................................................... 43
7.4.6 Chisel paste filling device ................................................................................................................................ 43
7.5 Checking the tensioning bolts ........................................................................................................................ 44
7.6 Checking the working tool............................................................................................................................... 44
7.7 Checking the retainer bars .............................................................................................................................. 45
7.8 Checking the percussion piston impact surface........................................................................................... 45
7.9 Checking the wear bushes and impact ring................................................................................................... 46
7.10 Checking and cleaning the DustProtector system........................................................................................ 47
7.11 Piston accumulator .......................................................................................................................................... 48
7.11.1 Checking the pressure in the piston accumulator ........................................................................................... 48
7.11.2 Release the pressure from the piston accumulator......................................................................................... 49
7.11.3 Filling / topping up the piston accumulator ...................................................................................................... 49
7.12 Checking the hydraulic lines ........................................................................................................................... 50
7.13 Checking and cleaning the hydraulic oil filter ............................................................................................... 50
7.14 Checking the adapter plate and the breaker box for cracks and/or wear ................................................... 50
7.15 Checking the adapter plate bolts for wear ..................................................................................................... 50
7.16 Bolt connections / Tightening torques MB750/DP, MB1000/DP................................................................. 51
7.17 Bolt connections / Tightening torques MB1200/DP, MB1500/DP, MB1650/DP ........................................ 53
8 Troubleshooting ...................................................................................................................... 55
8.1 The hydraulic breaker does not start.............................................................................................................. 55
8.2 Hydraulic breaker operates too slowly........................................................................................................... 55
8.3 Impact force too low......................................................................................................................................... 56
8.4 Impact rate too high and impact force too low .............................................................................................. 56
8.5 Oil leaks from ports »P« und »T«.................................................................................................................... 56
8.6 Oil escapes between the cylinder cover and the cylinder ............................................................................ 57
8.7 Oil escapes from parts of the hydraulic breaker installation (connecting fittings, hoses etc.) ................ 57
8.8 Oil escapes from the working tool .................................................................................................................. 57
8.9 Oil or grease escapes from the ContiLube®II............................................................................................... 57
8.10 Operating temperature too high...................................................................................................................... 57
9 Repair........................................................................................................................................ 58
9.1 Sending in the hydraulic attachment for repairs ........................................................................................... 58
10 Storage ..................................................................................................................................... 59
10.1 Hydraulic breaker ............................................................................................................................................. 59
10.1.1 Short storage................................................................................................................................................... 59
10.1.2 Long storage ................................................................................................................................................... 59
10.1.3 How to proceed after more than twelve months‘ storage ................................................................................ 59
10.2 Working tool...................................................................................................................................................... 60
10.3 Grease cartridges ............................................................................................................................................. 60
11 Disposal.................................................................................................................................... 61
11.1 Hydraulic breaker ............................................................................................................................................. 61

Epiroc MB 750 Specifications

General

Brand	Epiroc
Model	MB 750
Category	Industrial Equipment
Language	English