Kramer 348

3-72 BA 348-01 * 2.0 * 34801b340.fm
3 Operation
3.48 Pressure relief on the quick couplers and the quickhitch
Notice!
The hydraulic system of the machine is still pressurized even when the engine
is not running! The hydraulic quick couplers can be released, however they
cannot be re-attached because the pressure in the hydraulic lines has not
been released. Therefore:
• Release the pressure in the sections of the system and hydraulic lines that
are to be opened before starting setup or repair work, for example fitting/
removing an attachment!
☞Apply the parking brake
☞Stop the engine but leave the ignition switched on
☞Release the pressure (with the standard control lever)
• Unlock control lever 12. To to this: pull lock sleeve A on the control lever upward and
let it lock into place in the groove
• Move control lever 12 back and forth several times O/Z
➥Pressure in hydraulic lines is released
☞Switch off ignition and remove the ignition key
☞Remove or connect the flexible lines to the quick couplers
–seeInstalling a multipurpose bucket and hydraulic attachments on page 3-84
☞Release the pressure (with the switch on the control lever [option])
• Press and hold switch 51 on the joystick in each of positions a and b for about 5 – 8 seconds
➥Pressure in hydraulic lines is released
☞Switch off ignition and remove the ignition key
☞Remove or connect the flexible lines to the quick couplers
–seeInstalling a multipurpose bucket and hydraulic attachments on page 3-84
12
A
O
Z
Fig. 95 : Mechanical pressure relief (standard)
Fig. 96 : Electrical pressure relief (option)
ab
51