Models
Revision 03-2012
30
Toucan 1210
Toucan 1310
Pressure reducing valve
F
UNCTION
: Reduces the brake release pressure
between 1,8 and 2,1 MPa (18 and 21 bar).
Piloted 2-way spool
F
UNCTION
:
- Prevents the oil flow delivered to the brake release
circuit from returning to the reservoir when the work
platform is driven.
- Enables decompression of the brake release circuit
when the drive control is released.
NOTE
Setting of the pilot pressure of the piloted 2-
way spool is factory preset and should not
be modified.
Check valve
F
UNCTION
: Prevents the oil flow from returning to the
tank (via the pressure reducing valve) while using the
hand pump to release the brakes.
NOTE
The check valve is kept in position by
deformation of the thread : cannot be
removed.
1
1
2
3
3
2
1
Torque value 15 to 18 N.m
HYDRAULIC SYSTEM
3
3
Torque value : 25 to 30 N.m
Jet Ø 0,8
F
UNCTION
: Restricts the oil flow from returning to the
tank during decompression of the brake release circuit
(delays brake actuation during the dynamic braking
phase performed by the counterbalance valves on the
wheel motor distribution manifold).
NOTE
The jet is installed with glue : cannot be
removed.
Pressure relief valve [PR7]
F
UNCTION
:
- Limits the brake release pressure while the hand
pump is used.
- Protects the brake release circuit against any
overpressure in case of malfunction of the
pressure reducing valve.
- Setting range of the pressure relief valve [PR7]
= 0 to 5 MPa (0 to 50 bar).
Pressure relief valve [PR8]
F
UNCTION
: Limits the pressure (therefore the wheel
motor torque) in the drive circuit when the machine is
driven at slow speed (
).
- Setting range of the pressure relief valve [PR8]
= 0 to 25 MPa (0 to 250 bar).
The pressure relief valves PR7 and PR8 do
not share the same setting range. Do not
interchange the valve springs.
Setting of the relief valves
: See § 3.19.
1
2
1
2
!
CAUTION
1
2
Pressure relief valve PR7 - PR8
Torque value : 12 to 15 N.m
1
2
1
2
3
1
2
3
