ap4200t4255b

Service and parking brake - function check

Tip ap · temă 42.00 · versiune 0103 · 2005-07-12

Valabil pentru: MODEL NMB613.355 /358 /388 /455 /485

Nu este disponibil în „ro”; afișat în Engleză.

Încadrare

Grupă funcțională 2 Sistem de rulare › 42 Sistem hidraulic frâne şi sistem mecanic › 42.00 Generalităţi — Seria 613 (modele 355, 358, 388, 455, 485)

EinPAS 21 Frâne/instalație vacuum/instalație de aer comprimat › 21.15 Frână de serviciu/instalație vacuum › 21.15.5 Instalație de frânare completă — Seria 613 (modele 355, 358, 388, 455, 485)

EinPAS 21 Frâne/instalație vacuum/instalație de aer comprimat › 21.16 Frână de parcare › 21.16.5 Frână de parcare completă — Seria 613 (modele 355, 358, 388, 455, 485)

AP42.00-T-4255B

Service and parking brake - function check

21.10.98

MODEL NMB613.355 /358 /388 /455 /485

Service and parking brake - function check

T42.00-0003-01

5 Parking brake service pressure indicator lamp

6 Parking brake indicator lamp

7 "STOP" malfunction indicator lamp

Service and parking brake - function check

T42.00-0004-01

1 Brake circuit 1 service pressure indicator lamp

2 Brake circuit 2 service pressure indicator lamp

3 Brake circuit 1 service pressure display

4 Brake circuit 2 service pressure display

Service and parking brake - function check
Service and parking brake - function check

T42.00-0002-01

8 Brake lever, front wheel brake

9 Brake lever, rear wheel brake

T42.00-0001-01

Check

1

Switch on electric system

2

Check function of brake circuit 1 service pressure indicator lamp (1), brake circuit 2 service pressure indicator lamp (2), and "STOP" malfunction indicator lamp (7).

The indicator lamps must be on.
If the reservoir pressure is below 5.5 bar, the buzzer must also be activated.

If fitted, the displays for the brake circuit 1 service pressure (3) and brake circuit 2 service pressure (4) must indicate the reservoir pressure.

Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns when working in engine during starting procedure

Secure vehicle to prevent it from moving.
Wear closed and snug-fitting work clothes.
Do not grasp hot or rotating parts.

AS00.00-Z-0005-01A

3

Start engine

With a reservoir pressure in excess of approx. 5.5 bar the indicator lamps must extinguish after starting the engine.

If the "STOP" malfunction indicator lamp (7) remains on, there is a fault which is not related to the brake.

4

Reduce the reservoir pressure below 5.5 bar by applying the brake several times

Only if reservoir pressure exceeds 5.5 bar.

The indicator lamps and buzzer are switched on.

5

Apply service brake

Except for model 613 with rear axle 746.217

Ask an assistant to observe whether the movement at the front wheel brake lever (8) or rear wheel brake lever (9) is correct.

6

Turn off engine

7

Switch on electric system

8

Check function of parking brake indicator lamp (6) and parking brake service pressure indicator lamp (5).

Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns when working in engine during starting procedure

Secure vehicle to prevent it from moving.
Wear closed and snug-fitting work clothes.
Do not grasp hot or rotating parts.

AS00.00-Z-0005-01A

9

Start engine

If the reservoir pressure exceeds 6.0 bar, the parking brake service pressure indicator lamp (5) is switched off.

10

Actuate the parking brake until service pressure of parking brake falls below 6.0 bar

Only if service pressure of parking brake exceeds 6.0 bar. The parking brake service pressure indicator lamp (5) comes on.

11

Release parking brake

The indicator lamps and buzzer are switched on. Parking brake indicator lamp (6) must be switched off.

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