4-68
Structure Function Principle
January 24, 2017
Hydraulic cooling system
CLG835H
In addition, the electric control system acquires
the temp signal from air-air inter-cooler, oil and
water temp signals from torque converter, to
control the opening of proportional relief valve,
so that the pressure difference between inlet and
outlet of cooling motor, further to control motor
flow and fan speed.
Cooling pump
Main technical parameters
Structure and working principle of cooling
pump
Since the cooling pump is a tandem pump with
brake pump, and thus its content is the same
with that of brake pump, please refer to
Structure and working principle of brake pump.
Cooling motor
Main technical parameters
Structure and working principle of motor
The cooling motor, as an actuator of system, is
used to pull the fan to rotate, so that the
hydraulic pressure from cooling pump is
converted into mechanical energy of fan.
Overall structure of motor:
Items
Parame-
ters
Service
condi-
tions
Rema
rks
Theoretical dis-
placement (ml/
r\cc/r)
26.3\26.3
/
/
Rated speed (r/
min)
600-2500
/
/
Rated pressure
(Mpa\psi)
20\2900
/
/
Volume efficiency
0.92
/
/
Operating fluid
Anti-wear
hydraulic oil
HM46/HV46
/
Direction of rota-
tion
Left rotation
/
/
Items
Parame-
ters
Service
condi-
tions
Remarks
Theoretical dis-
placement (ml/
r\cc/r)
35.5\35.5
/
/
Rated/maxi-
mum speed (r/
min)
1250/3000 /
Set speed
of fan
1250r/min
Rated pres-
sure (MPa)
18\2610
/
/
Volume effi-
ciency
0.92
/
/
Operating fluid
Anti-wear
hydraulic
oil
HM46/HV46 /
Direction of
rotation
Bidirec-
tional rota-
tion
/
/
Schematic of cooling motor
1. A port
2. B port
3. Housing oil
return port
P18H00058
Summary of Contents for CLG835H
Page 2: ......
Page 4: ...Contents January 24 2017 CLG835H...
Page 6: ...1 2 General Information January 24 2017 CLG835H...
Page 38: ...1 34 Machine Inspection Table January 24 2017 CLG835H...
Page 156: ...3 2 Power Train System January 24 2017 CLG835H...
Page 214: ...3 2 Power Train System January 24 2017 CLG835H...
Page 272: ...3 60 Testing and adjustment January 24 2017 Power Train Test CLG835H...
Page 276: ...4 4 Hydraulic System January 24 2017 CLG835H...
Page 552: ...6 2 Driver s Cab System January 24 2017 CLG835H...
Page 608: ...7 2 Structure January 24 2017 CLG835H...
Page 662: ...8 4 Electrical System January 24 2017 CLG835H...
Page 677: ...8 19 January 24 2017 Structure Function Principle CLG835H Power System P18E00014...