Volvo L20B, Owner'S Manual

Page: 106 / 110

Attachments - optional equipment
104 Special hydraulics
Special hydraulics
Special hydraulics at front, electrically
switchable "Up/Down"
This function enables the operation of hydraulic quick change
attachment equipment such as clam bucket, grab bucket, tree
clamp etc. with only one lever (1), i.e. without having to change
over to lever (2). However, the function of lever (2) is still available,
to ensure an engagement position for road sweeper operation etc.
and to be able to relieve the hydraulic couplings when the engine
is shut down.
Operation
This function can only be activated when the engine is running.
Operate the push button (F) in lever (1) and hold it.
The special hydraulics function is enabled:
– "Locking/unlocking" the SW-equipment carrier (see Installation
and removal of quick change attachment equipment with auxil-
iary hydraulics).
– Attachment equipment "Open/Close".
– Release the push button (F) = standard function Up/Down/
Float position.
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.
ATTENTION!
If the push button (F) is released during the opening/
closing movement, the function "Up/Down" is immediately
reversed, i.e. the lifting frame may perform an undesired
lifting movement.
M200054A
2
1
M200084A
F