ar0150w2000j

Remove/install hydraulic constant throttle

Type ar · topic 01.50 · version 0105 · 2010-12-06

Applies to: ENGINES 902.9 in MODEL 375.3, 950.6 /5, 952.6 /5, 953.6, 954.5 ENGINES 902.9 in MODELS 375.1, 970, 972, 974, 975, 976 ENGINES 925.9 in MODELS 970, 972, 974 ENGINES 926.9 in MODEL 958.0 ENGINES 926.9 in MODEL 950.6 /5, 952.6 /5, 953.6, 954.5, 958.2

Where it sits

Function group 1 Engine › 01 Complete engine, crankcase ventilation, cylinder head, crankcase › 01.50 Constantly open throttle valve — Series 375 (models 1**, 3**) · Series 902 (models 9**) · Series 950 (models 5**, 6**) · Series 952 (models 5**, 6**) · Series 953 (models 6**) · Series 954 (models 5**) · Series 958 (models 0**, 2**) · Series 970 · Series 972 · Series 974 · Series 975 · Series 976

EinPAS 15 Engine › 15.16 Cylinder head › 15.16.40 Constant throttle — Series 375 (models 1**, 3**) · Series 902 (models 9**) · Series 950 (models 5**, 6**) · Series 952 (models 5**, 6**) · Series 953 (models 6**) · Series 954 (models 5**) · Series 958 (models 0**, 2**) · Series 970 · Series 972 · Series 974 · Series 975 · Series 976

Also applies to engines/gearboxes: 925 9**, 926 9**

AR01.50-W-2000J

Remove/install hydraulic constant throttle

23.11.10

ENGINES 902.9 in MODEL 375.3, 950.6 /5, 952.6 /5, 953.6, 954.5

ENGINES 902.9 in MODELS 375.1, 970, 972, 974, 975, 976

ENGINES 925.9 in MODELS 970, 972, 974

ENGINES 926.9 in MODEL 958.0

ENGINES 926.9 in MODEL 950.6 /5, 952.6 /5, 953.6, 954.5, 958.2

Remove/install hydraulic constant throttle

W01.50-1033-04

Shown on engine 926.9

1 Electrical connector

2 Hydraulic line

3 Housing

4 O-ring

Y49 Hydraulic constant throttle solenoid valve

Remove/install

1

Switch off ignition

Danger!

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

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

AS60.80-Z-0001-01A

2

Tilt cab

Installation: Only tilt cab back after leak test has been conducted.

Notes on tilting the cab

AH60.80-N-0003-01A

3

Remove soundproofing on frame at upper left

4

Disconnect electrical connector (1)

5.1

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

When removing hydraulic constant throttle solenoid valve (Y49).

Collect engine oil that flows out.

*BA01.50-N-1001-01C

5.2

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

When removing the housing (3) with installed hydraulic constant throttle solenoid valve (Y49).

Collect engine oil that flows out.

Installation: Replace sealing rings for hydraulic line (2) and seal under housing (3).

6

Install in the reverse order

7

Check engine oil level at 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

8

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

9

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

Engines
925.9, 926.9

BA01.50-N-1001-01C

Hydraulic constant throttle solenoid valve on crankcase

Nm

35

35

Referenced documents