Dynapac CC102 Guida rapida

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 +46 455-627 00

Telefax +46 455-627 30

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

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

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)

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

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.

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