Dynapac CC102 Quick start guide

Training
CC 102/102C/122/122C
CC 142/142C/142-II/142C-II
Components & Diagrams
T-1031-4EN
Printed in Sweden 95 09
We reserve the right to change specifications without notice. Dynapac Heavy Equipment AB
Box 504 • S-371 23 KARLSKRONA • SWEDEN
Telephone [phone]
Telefax [phone]
Telex 43041 dynkar s

T-1031-4 EN CC 102/102-II/C, CC 122/122-II/C, CC 142/142-II/C 2
X1 X4 X2
RX3
123
4
5
1 Mechanical neutral adjustment
2 Forw/Rev lever
3 Brake valve
4 Hydraulical neutral adjustment
5 Feed back link
X1 Test port before servo cylinder
X2 Test port before servo cylinder
X3 Test port in servo cylinder
X4 Test port in servo cylinder
R Housing pressure test port
Propulsion pump P/N 35 70 08
CC 102-II/C, CC 122-II/C, CC 142/142-II/C
See Workshop Instruction W-1006 for further information.

T-1031-4 EN CC 102/102-II/C, CC 122/122-II/C, CC 142/142-II/C 3
12
1 Port A, (backwards)
2 Return port, tank
3 Port B, (forwards)
4 Test nipple, M1 (Ma)
5 Suction port
6 Relief valve, charge pressure
7 Test nipple, charge pressure
8 Relief valves, high pressure
9 Charge pump behind cover
10 Test nipple, M2 (Mb)
3
457
68910
Propulsion pump P/N 35 70 08
CC 102-II/C, 122-II/C, 142/142-II/C
See Workshop Instruction W-1006 for further information.

T-1031-4 EN CC 102/102-II/C, CC 122/122-II/C, CC 142/142-II/C 4
b
p
a
Spring centered F&R assist
Orifice X1
Servo piston
Forward & reverse control
Feed back link
Orifice X2
Brake valve housing
Servo control spool
Propulsion pump P/N 35 70 08
CC 102-II/C, 122-II/C, 142/142-II/C
Servo control valve (viewed from top).

T-1031-4 EN CC 102/102-II/C, CC 122/122-II/C, CC 142/142-II/C 5
X3, X4
Brake valve housing
Feed back link
Orifice X1, X2 Adjusting screw of the
hydraulic balance
Propulsion pump P/N 35 70 08
CC 102-II/C, 122-II/C, 142/142-II/C
Control unit of propulsion pump (viewed from side).

T-1031-4 EN CC 102/102-II/C, CC 122/122-II/C, CC 142/142-II/C 6
Block the drums to prevent machine
from moving.
Fig 1. See to that operating temperature
>50°C is achieved.
When adjusting keep engine rpm on 1500.
Fig 2. Connect both control chambers with a
hose. Disconnect forward/reverse control wire
(in order to avoid residual signal).
Fig 3. Connect high pressure gauges (400
bar) to test nipples on port A & B respective.
Adjust 0-position so that pressure on both
gauges is below 40 bar.
Interchange position of gauges to avoid gauge
malfunction.
Should read same on both gauges as before.
Fig 4. Replace the 400 bar gauges by 40 bar
in the same nipples.
Repeat adjusting procedure acc. to earlier until
LOWEST possible reading is obtained on both
gauges.
Interchange position of gauges to avoid gauge
malfunction.
Fig 5. Remove connecting hose between
chambers. Repeat measurements as indicated
in items 3 and 4.
Now the pressure can be adjusted, if needed,
on the small allen screw on the valve housing
after loosing locnut.
Do not turn the allen screw more than ±90°.
Reset machine after adjustments and testrun
acc. to O&M instructions.
Propulsion pump P/N 35 70 08
CC 102-II/C, 122-II/C, 142/142-II/C
Adjusting of neutral position.

T-1031-4 EN CC 102/102-II/C, CC 122/122-II/C, CC 142/142-II/C 7
Propulsion pump P/N 35 84 70 CC 102/C, 122/C
See Workshop Instruction W-1012 for further information.

T-1031-4 EN CC 102/102-II/C, CC 122/122-II/C, CC 142/142-II/C 8
Propulsion motor P/N 35 72 66
CC 102C/102-IIC/122C/122-II/CC 142C/142-IIC rear
See Workshop Instruction W-1010 for further information.
Connection from
port A on pump
Connection from
port B on pump

T-1031-4 EN CC 102/102-II/C, CC 122/122-II/C, CC 142/142-II/C 9
Propulsion motor P/N 35 72 66
CC 102C/102C-II, CC 122C/122C-II, CC142C/142C-II, rear

T-1031-4 EN CC 102/102-II/C, CC 122/122-II/C, CC 142/142-II/C 10
Propulsion motor P/N 35 70 23
CC 102/102-II/C, CC122/122-II/C front
See Workshop Instruction W-1009 for further information.