Volvo L20B, Owner'S Manual

Page: 104 / 110

Attachments - optional equipment
102 Universal fork with hydraulic gripper
Universal fork with hydraulic grip-
per
The universal fork is most suitable for the loading and transport of
e.g. biological waste, tree branches, hay, manure and similar bulky
materials.
Operation
Installation of universal fork, see "Installation and removal of quick
change attachment equipment with auxiliary hydraulics".
The hydraulic gripper is operated with the lever (2).
When entering into the material keep the gripper fully open, as oth-
erwise the resulting very high pressure may cause leaks on hoses
and seals.
Do not operate the gripper with full power against the end stop.
Due to the high opening/closing speed the cylinders may be dam-
aged.
Maintenance
Material which is trapped between cylinder and bucket must be
immediately removed, as otherwise the piston rod of the cylinder
may be damaged or bent.
Check hydraulic lines at regular intervals for leaks and visible
external damage, replace if necessary.
Grease the bearings on gripper and cylinders every 50 operating
hours . For quality of grease refer to the table of fuels and lubri-
cants.
Always relieve the pressure in the hydraulic system before starting
maintenance or repair work.
Work in hydraulic systems must only be performed by author-
ized personnel.
M300103A
M200054A
2
1