Kalmar DCE80-100E - Main Hydraulics Description

DCE80-100E
Technical Handbook
Main hydraulics
Description
3
P.Group 70
TDCE01
04GB
General survey .
There are two different hydraulic systems
z Standard with hydraulic servo Diagram A06195.0600
or with el-servo Hydraulic diagram A06195.0500
z System with separate side-lift hydraulics Diagram 44866.0100
Standard hydraulic system, Diagram A06195.0600
The hydraulic system consists of the following sub-systems.
z Main hydraulics with the following functions:
–Lifting
– Tilting
–Sideshift
– Length adjustment
– Twist-locks
z Steering system
z Driving brake system for wet brakes with:
– Brake circuit
– Cooling circuit
z Parking brake system
The hydraulic system is configured around two single hydraulic
pumps which are driven by take-offs on the torque converter.
All of the essential valve functions are concentrated to a valve
block that is directly connected to the main valve.
One of the pumps powers the lifting function. Some of the return
fluid is by-passed to the cooling circuit of the driving brake system
to dissipate heat and is then lead to the reservoir.
1. Hydraulic pump, working hydraulics,
steering system, accumulator charge
2. Hydraulic pump, LIFT
3. High pressure filter
4. Main valve with valve block
a.Accumulator charging valve
With charged accumulator
feed to brake cooling circuit or
tank return
b .Feed to servo system
c. Priority valve, steering system
d. Feed to steering system
e. Main pressure limiting valve
f. Control section TWIST-LOCKS
g. Control section LENGTH ADJUST-
MENT
h. Control section SIDESHIFT
j. Control section TILT
k. Main pressure limiting valve
m. Control section LIFT
5. Steering system
6. Cooling circuit for service brake system
7. Brake circuit service brake system
8. Parking brake system
9. Accumulator
10. Accumulator discharge valve
11. Safety valve, accumulator
12. Servo controlled control levers
13. Solenoid valve, safety system, twist-
locks
14. Solenoid valve, safety system, lift
15. Hydraulic tank
16. Breather filter, hydraulic tank
17. Hydraulic oil cooler
Hydraulic system, standard