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COPYRIGHT © 2019 SANDVIK MINING AND CONSTRUCTION OY
Page 66 - Maintenance
Troubleshooting
2155E STD
HYDRAULIC OIL VISCOSITY TOO LOW
Check hydraulic oil. See “Requirements for hydraulic oil” on page 51.
EXCESSIVE BACK PRESSURE IN RETURN LINE
Check the installation. Check the size of the return line.
RELIEF VALVE IN HYDRAULIC CIRCUIT OPENS AT A LOW PRESSURE. HAMMER OPERATING PRESSURE
IS NOT REACHED
Check the installation. Check the relief valve operation. Adjust the relief valve in
hydraulic circuit. Measure the high pressure in the hammer inlet line. Contact your
local dealer for more information.
LEAKAGE FROM PRESSURE TO RETURN IN EXCAVATOR HYDRAULIC CIRCUIT
Check the installation. Check the pump and the other hydraulic components.
PRESSURE LOSS IN PRESSURE ACCUMULATOR
The hammer must be serviced in an authorized Rammer service shop.
FAILURE IN HAMMER VALVE OPERATION
The hammer must be serviced in an authorized Rammer service shop.
4.4 THE HAMMER DOES NOT STOP OR HAS RUN-ON
INTERNAL OIL LEAK IN THE HAMMER
The hammer must be serviced in an authorized Rammer service shop.
FAILURE IN HAMMER CONTROL VALVE OPERATION
Check the hammer control valve in the carrier.
4.5 OIL OVERHEATS
APPLICATION NOT CORRECT FOR HAMMER
Refer to recommended use and to correct working methods. See “Daily operation”
on page 29.
COOLING CAPACITY OF THE FACTORY OIL COOLER IS TOO SMALL
Assemble an extra oil cooler.
RELIEF VALVE IN HYDRAULIC CIRCUIT OPENS AT A LOW PRESSURE. HAMMER OPERATING PRESSURE
IS NOT REACHED
Check the installation. Check the relief valve operation. Adjust the relief valve in
hydraulic circuit. Measure the high pressure in the hammer inlet line. Contact your
local dealer for more information.
HYDRAULIC OIL VISCOSITY TOO LOW
Check hydraulic oil. See “Requirements for hydraulic oil” on page 51.
Summary of Contents for 2155E
Page 3: ...Operation Page 3 COPYRIGHT 2019 SANDVIK MINING AND CONSTRUCTION OY 2155E STD OPERATION ...
Page 40: ...COPYRIGHT 2019 SANDVIK MINING AND CONSTRUCTION OY Page 40 Operation Operation 2155E STD ...
Page 41: ...Lubrication Page 41 COPYRIGHT 2019 SANDVIK MINING AND CONSTRUCTION OY 2155E STD LUBRICATION ...
Page 57: ...Maintenance Page 57 COPYRIGHT 2019 SANDVIK MINING AND CONSTRUCTION OY 2155E STD MAINTENANCE ...
Page 77: ...Page 77 COPYRIGHT 2019 SANDVIK MINING AND CONSTRUCTION OY ...
Page 78: ...COPYRIGHT 2019 SANDVIK MINING AND CONSTRUCTION OY Page 78 ...
Page 79: ...Page 79 COPYRIGHT 2019 SANDVIK MINING AND CONSTRUCTION OY ...