ar0150b1000a

Constant-speed throttle removal and installation

Type ar · topic 01.50 · version 0104 · 2020-03-13

Applies to: Engine 904 in model 368, 382, 384, 685.284 Engine 904 in model 693, 694 Engine 904 in model 979 Engine 906 (except 906.999) in model 368, 382 Engine 906 (except 906.999) in model 693, 695 Engine 924 (except 924.92) in model 368, 384, 685.282/284/289, 979 Engine 924 in model 693, 694 Engine 924 in model 979 Engine 926 (except 926.942/95) in model 368, 382, 384, 634 Engine 926 in model 693, 695

Where it sits

Function group 1 Engine › 01 Complete engine, crankcase ventilation, cylinder head, crankcase › 01.50 Constantly open throttle valve — Series 368 · Series 382 · Series 384 · Series 634 · Series 685 (models 282, 284, 289) · Series 693 · Series 694 · Series 695 · Series 904 · Series 906 (models 000, 900, 901, 902, 903, 910, 911, 912, 913, 915, 916, 917, 918, 919, 920, 921, 922, 923, 924, 925, 926, 927, 928, 929, 930, 931, 932, 933, 934, 935, 936, 937, 938, 939, 940, 941, 944, 945, 946, 947, 948, 949, 950, 951, 952, 953, 954, 955, 956, 960, 961, 963, 964, 965, 966, 967, 970, 972, 973, 974, 975, 977, 982, 983, 984, 985, 987, 988, 989, 990, 991, 992, 993, 994, 995, 998) · Series 979

EinPAS 15 Engine › 15.16 Cylinder head › 15.16.40 Constant throttle — Series 368 · Series 382 · Series 384 · Series 634 · Series 685 (models 282, 284, 289) · Series 693 · Series 694 · Series 695 · Series 904 · Series 906 (models 000, 900, 901, 902, 903, 910, 911, 912, 913, 915, 916, 917, 918, 919, 920, 921, 922, 923, 924, 925, 926, 927, 928, 929, 930, 931, 932, 933, 934, 935, 936, 937, 938, 939, 940, 941, 944, 945, 946, 947, 948, 949, 950, 951, 952, 953, 954, 955, 956, 960, 961, 963, 964, 965, 966, 967, 970, 972, 973, 974, 975, 977, 982, 983, 984, 985, 987, 988, 989, 990, 991, 992, 993, 994, 995, 998) · Series 979

Also applies to engines/gearboxes: 924 ***, 924 00*, 924 91*, 924 93*, 924 94*, 924 97*, 924 98*, 924 99*, 926 ***, 926 000, 926 900, 926 910, 926 911, 926 912, 926 913, 926 914, 926 915, 926 916, 926 917, 926 918, 926 919, 926 920, 926 921, 926 924, 926 925, 926 926, 926 927, 926 928, 926 929, 926 930, 926 932, 926 933, 926 934, 926 935, 926 937, 926 938, 926 941, 926 945, 926 946, 926 947, 926 948, 926 949, 926 960, 926 961, 926 969, 926 970, 926 971, 926 972, 926 973, 926 974, 926 975, 926 976, 926 985, 926 986, 926 987, 926 988, 926 989, 926 990, 926 991, 926 992, 926 993, 926 994, 926 995, 926 996, 926 997, 926 998, 926 999

AR01.50-B-1000A

Constant-speed throttle removal and installation

28.02.2020

Engine

904 in model 368, 382, 384, 685.284

Engine

904 in model 693, 694

Engine

904 in model 979

Engine

906 (except 906.999) in model 368, 382

Engine

906 (except 906.999) in model 693, 695

Engine

924 (except 924.92) in model 368, 384, 685.282/284/289, 979

Engine

924 in model 693, 694

Engine

924 in model 979

Engine

926 (except 926.942/95) in model 368, 382, 384, 634

Engine

926 in model 693, 695

Constant-speed throttle removal and installation

1

Cover

2

O-ring

3

Seal ring

4

Piston

5

Tapered keyways

6

Spring plate

7

Spring

8

Spring bottom plate

9

Valve

11

Support piece (wood or plastic)

W01.50-0001-06

Constant-speed throttle removal and installation

4

Piston

5

Tapered keyways

6

Spring plate

7

Spring

12

Needle nose pliers

13

Valve assembly tool

B01.50-0001-06

Constant-speed throttle removal and installation

3

Seal ring

4

Piston

14

Installation device of the ring on the piston

W01.50-0004-10

Remove/install

1

Remove the cylinder head


Engine 904.9, 924.9

AR01.30-B-5800B

Engine 906.9 , 926.9

AR01.30-B-5800J

2

Remove the injector holders


.

AR07.03-B-6831A

3

Remove the cover (1)

Installation: Replace the O-ring (2).

4

Shim the valve (9) with the support piece (11)

The support piece, approximately 5.3 mm high, is to be installed between the valve and the base where the cylinder head is supported.

5

Remove the piston (4) using a needle nose pliers

Be careful not to damage the sealing ring (3).

6

Remove the sealing ring (3) from piston (4)


.

AR01.50-B-1000-01A

Installation: Install new sealing ring (3) on piston (4) with device (14).

Assembly tool

*904589056300

7

Compress the spring (7) with the compressor (13) and remove the tapered keys (5)

If necessary, use a small hook to dislodge the valve conical keepers.

Installation: Support the spring compressor (13) on the upper plate (6) and compress the spring (7) until you are capable of fitting the keepers (5).
Slowly relieve the load on the spring (7), so the keepers (5) remain attached to the valve stem (9).

Sleeve

*442589001400

Guide sleeve

*442589011400

Assembly sleeve

*442589021400

Drift punch

*442589001500

8

Relieve the load on the spring and remove the plate (6), the spring (7) and the guide (8)

Observe the position of the top spring retainer (6) and the bottom guide (8).

Assembly: Mount the guide (8), the spring (7) and the plate (6).
Fit the keepers (5) on the plate (6).

9

Rotate the cylinder head and remove the valve (9)

Mark the valve and its seat.

Oil the valve stem with engine oil and insert it in the cylinder head. Shim the valve using the 5.3 mm height support piece (11).

10

Install in reverse order

Constant-speed throttle removal and installation
Constant-speed throttle removal and installation
Constant-speed throttle removal and installation
Constant-speed throttle removal and installation

442 589 01 14 00

Guide sleeve

904 589 05 63 00

Assembly tool

442 589 02 14 00

Assembly sleeve

442 589 00 14 00

Sleeve

Constant-speed throttle removal and installation

442 589 00 15 00

Drift punch

Referenced documents