ar0150w2000b

Remove/install hydraulic constant throttle

Type ar · topic 01.50 · version 0106 · 2010-07-01

Applies to: ENGINE 902.9 in MODEL 957 except CODE (MS8) Natural gas engine ENGINE 906.9 in MODEL 374, 958, 970, 972, 974, 975, 976 ENGINE 906.9 in MODEL 374, 375, 950, 952, 953, 954, 958 ENGINE 906.9 in MODEL 957 except CODE (MS8) Natural gas engine ENGINE 926.9 in MODEL 957

Where it sits

Function group 1 Engine › 01 Complete engine, crankcase ventilation, cylinder head, crankcase › 01.50 Constantly open throttle valve — Series 374 · Series 375 · Series 902 (models 9**) · Series 906 (models 9**) · Series 950 · Series 952 · Series 953 · Series 954 · Series 957 · Series 958 · Series 970 · Series 972 · Series 974 · Series 975 · Series 976

EinPAS 15 Engine › 15.16 Cylinder head › 15.16.40 Constant throttle — Series 374 · Series 375 · Series 902 (models 9**) · Series 906 (models 9**) · Series 950 · Series 952 · Series 953 · Series 954 · Series 957 · Series 958 · Series 970 · Series 972 · Series 974 · Series 975 · Series 976

Also applies to engines/gearboxes: 926 9**

AR01.50-W-2000B

Remove/install hydraulic constant throttle

30.6.10

ENGINE 902.9 in MODEL 957 except CODE (MS8) Natural gas engine

ENGINE 906.9 in MODEL 374, 958, 970, 972, 974, 975, 976

ENGINE 906.9 in MODEL 374, 375, 950, 952, 953, 954, 958

ENGINE 906.9 in MODEL 957 except CODE (MS8) Natural gas engine

ENGINE 926.9 in MODEL 957

Remove/install hydraulic constant throttle

W01.50-1033-04

1 Electrical connector

2 Hydraulic line

3 Housing

4 O-ring

Y49 Hydraulic constant throttle solenoid valve

Remove/install

1

Switch off ignition

2

Open maintenance flap

Danger!

Risk of injury caused by body parts being pinched or crushed as cab is tilted

Ensure that no one is within the tilting range of the cab as it is being tilted. Always tilt the cab all the way to the end position and secure with the safety strut.

AS60.80-Z-0001-01A

3

Tilt cab

Installation: Tilt the cab back after the leak test has been conducted

Notes on tilting the cab

AH60.80-N-0003-01A

4

Remove soundproofing on left side at frame

5

Disconnect electrical connector (1)

6

Remove hydraulic constant throttle solenoid valve (Y49) at housing (3)

Collect engine oil that flows out.

*BA01.50-N-1001-01C

7

Remove housing (3) of hydraulic constant throttle solenoid valve (Y49)

Only if housing (3) must be removed.
Collect engine oil which flows out.

8

Install in the reverse order

9

Check engine oil level using oil dipstick or on display, correct if necessary

Observe engine oil grade set in maintenance system or Specifications for Operating Fluids.

Notes on engine oil

AH18.00-N-0101-01B

Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running

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

AS00.00-Z-0005-01A

10

Start engine and allow to run in idle for 10 s until the oil pressure has built up, then allow engine to run at varying speeds

11

Turn off the engine and check area of hydraulic constant throttle solenoid valve (Y49) for leaks

Visual inspection.

Constant throttle

Number

Designation

Engine
902.9, 906.9 without code MS8

Engine
925.9, 926.9

BA01.50-N-1001-01C

Hydraulic constant throttle solenoid valve on crankcase

Nm

35

35

Referenced documents