ar2010b1401b

Disassemble/assemble coolant pump

Type ar · topic 20.10 · version 0101 · 2016-02-12

Applies to: Cumbustion engine 372, 374, 376, 377, 386 with Vehicle 382, 384, 386, 682, 684, 688, 693, 694, 695

Where it sits

Function group 1 Engine › 20 Engine cooling system › 20.10 Coolant pump, coolant thermostat — Series 372 · Series 374 · Series 376 · Series 382 · Series 384 · Series 386 · Series 682 · Series 684 · Series 688 · Series 693 · Series 694 · Series 695

EinPAS 15 Engine › 15.25 Engine cooling system › 15.25.30 Pump/thermostat/preheater — Series 372 · Series 374 · Series 376 · Series 382 · Series 384 · Series 386 · Series 682 · Series 684 · Series 688 · Series 693 · Series 694 · Series 695

Also applies to engines/gearboxes: 377 ***

AR20.10-B-1401B

Disassemble/assemble coolant pump

12.02.16

Cumbustion engine 372, 374, 376, 377, 386 with Vehicle 382, 384, 386, 682, 684, 688, 693, 694, 695

Disassemble/assemble coolant pump

B20.10-0022-09

Disassemble/assemble coolant pump

B20.10-0023-06

a Control measure

A Water pump shaft

B Hub

C Front cover with sealant

D Sealing ring

E Front bearing

F Rear bearing

G Rear sealant

H Sliding sealant

J Rotor

K Distance between the rotor and the housing

M Housing gasket

N Rear cover

O Water pump gasket

P Water pump housing

Q Front cover screw

R Screw securing the water pump on the engine block

S Screw securing the rear cover to the water pump housing

Disassembling

1

Loosen the screws (S) and remove the rear cover (N)

Except for Engines 374.9

2

Loosen the screws (Q) from the front cover with sealant (C)

3

Remove the shaft (A) together with the hub (B) and the bearings (E, F)

Properly support the water pump on the press and, with the aid of an appropriate pin, extract the shaft by pressing the side of the rotor (J).

4

Remove the hub (B) and the front bearing (E) from the shaft (A)

With the help of the press, support the assembly on the inner race of the bearing and remove the shaft.

5

Remove the rear bearing (F) from the shaft (A)

With the help of the press, support the assembly on the inner race of the bearing and remove the shaft.

6

Remove the sealant from the front cover (C)

*360589001500

7

Remove the sliding sealant assembly (H) from the housing (P)

8

Remove the sealant (G) from the housing (P)

*321589071500

9

Remove the ring with the sliding sleeve from the rotor (J)

Clean

10

Clean the parts of the water pump

Clean the parts with kerosene, except the shielded bearings and sliding seals, which should be dry cleaned.

*BR00.45-B-1002-04A

Check

11

Inspect the parts for wear

Replace worn parts:

Shaft (A)

*BE20.10-B-1002-01A

*BE20.10-B-1002-01B

Housing (P)

*BE20.10-B-1003-01A

*BE20.10-B-1003-01B

Hub (B)

*BE20.10-B-1004-01A

*BE20.10-B-1004-01B

Rotor (J)

*BE20.10-B-1005-01A

*BE20.10-B-1005-01B

Rotor (J)

*BE20.10-B-1006-01A

*BE20.10-B-1006-01B

Assembling

12

Install a new rear seal (G) on the pump housing (P)

*000589061500

13

Install a new seal on the front cover (C)

*360589001500

14

Install the bearings (E, F) on the shaft (A)

Fill the bearing cages with suitable grease, in the indicated quantity, with the aid of a press, mount them on the shaft until they reach the stop.

*BR00.45-B-1003-06A

15

Install the shaft (A) on the hub (B)

Mount the front cover with the seal on the hub, and insert the shaft with the aid of the press, until it reaches the stop, mounting a new sealing ring (D) on the front cover (C) shoulder.

16

Install the shaft assembly (A) on the housing (P)

Insert the shaft assembly in the housing and tighten the front cover (Q) screws to the specified torque, noting the sealing ring (D) position.

*BA20.10-B-1004-01A

17

Mount a new sliding seal (H)

With the aid of a suitable mandrel, insert the sliding seal until the tab leans on the housing.

*352589081500

18

Mount the slip ring on the rotor (J) with the sealing sleeve

When assembling the composite sliding seal, these parts are integrated thereto, and the whole assembly is mounted on the pump housing.

19

Mount the rotor (R) on the shaft (A)

AR20.10-B-1401-02A

Control measure (a)

*BE20.10-B-1001-01A

*BE20.10-B-1001-01B

Distance (K)

*BE20.10-B-1006-01A

*BE20.10-B-1006-01B

20

Mount the rear cover (N) on the housing (P)

For 372.9, 376.9, 377.9 engines, install the rear cover with new gasket (M) and tighten the screws (S) on their respective washers.

*BA20.10-B-1003-01A

Inspection and setting data of coolant pump

Número

Denominação

Engine 374.9

Engine 376.919/922/941, 376.942/967/974, 376.976/977/993, 377.940/941/960, 377.961/962/963, 377.964/968/969, 377.972, 386.9

BE20.10-B-1001-01A

(A) control measure

mm

118,5...119,5

143...144

BE20.10-B-1002-01A

Axis (A)

Diameter for the rotor (J)

mm

15,028...15,039

15,028...15,039

Diameter for the cube (J)

mm

29,041...29,054

29,041...29,054

Diameter for the bearing (F)

mm

17,001...17,012

17,001...17,012

Diameter for the bearing (E)

mm

30,002...30,015

30,002...30,015

Length

mm

143,5

143,5

Max. eccentricity between the seats of bearings

mm

0,025

0,025

BE20.10-B-1003-01A

Diameter of the bearing casing in the pump casing

(E)

mm

61,976...61,990

61,976...61,990

(F)

mm

39,980...39,990

39,980...39,990

BE20.10-B-1004-01A

Internal diameter of the cube (B)

mm

28,972...28,993

29,000...29,021

BE20.10-B-1005-01A

Rotor (J)

Internal diameter

mm

15,000...15,018

15,003...15,021

External diameter

mm

94,9...95,1

94,3...94,5

Maximum eccentricity

mm

0,15

0,2

BE20.10-B-1006-01A

Distance (K)

mm

0,2...1,0

0,2...1,0

Inspection and setting data of coolant pump

Número

Denominação

Motor 372.9, 376.90, 376.925/926/927, 376.930/945/946, 376.947, 376.95, 376.961/962/963, 376.964/981/984, 376.986/989/994, 377.942/943/944, 377.945

BE20.10-B-1001-01A

(A) control measure

mm

143...144

BE20.10-B-1002-01A

Axis (A)

Diameter for the rotor (J)

mm

15,028...15,039

Diameter for the cube (J)

mm

29,041...29,054

Diameter for the bearing (F)

mm

17,001...17,012

Diameter for the bearing (E)

mm

30,002...30,015

Length

mm

143,5

Max. eccentricity between the seats of bearings

mm

0,025

BE20.10-B-1003-01A

Diameter of the bearing casing in the pump casing

(E)

mm

61,976...61,990

(F)

mm

39,980...39,990

BE20.10-B-1004-01A

Internal diameter of the cube (B)

mm

28,972...28,993

BE20.10-B-1005-01A

Rotor (J)

Internal diameter

mm

15,000...15,018

External diameter

mm

94,9...95,1

Maximum eccentricity

mm

0,15

BE20.10-B-1006-01A

Distance (K)

mm

0,2...1,0

Inspection and setting data of coolant pump

Número

Denominação

Engine 376.958

Engine 372.985, Engine 376.972/995/997,Engine 377.973/980/981, 377.982/983/984, 377.985

BE20.10-B-1001-01B

Control measurement (a)

mm

143...144

143...144

BE20.10-B-1002-01B

Axle (A)

Rotor diameter (J)

mm

15,045...15,056

15,045...15,056

Hub diameter (J)

mm

25,048...25,061

25,048...25,061

Length

mm

126,975...127,025

126,975...127,025

BE20.10-B-1003-01B

Diameter of bearing housing in pump housing

mm

54,940...54,970

54,940...54,970

BE20.10-B-1004-01B

Inner diameter of hub (B)

mm

24,976...24,989

24,976...24,989

BE20.10-B-1005-01B

Rotor (J)

Inner diameter

mm

14,977...14,995

14,977...14,995

Outer diameter

mm

94,9...95,1

94,9...95,1

Maximum eccentricity

mm

0.15

0.15

BE20.10-B-1006-01B

Distance (K)

mm

0,4...0,7

0,2...1,0

Coolant pump, coolant thermostat

Número

Denominação

Engine 372.9, 374.9, 376.9, 377.9, 386.9

BA20.10-B-1003-01A

Water pump to engine block

M8

Nm

30

M10

Nm

50

BA20.10-B-1004-01A

Water pump front cover

M6

Nm

15

Disassemble/assemble coolant pump
Disassemble/assemble coolant pump
Disassemble/assemble coolant pump
Disassemble/assemble coolant pump

321 589 07 15 00

Mandrel

360 589 00 15 00

Mandrel

000 589 06 15 00

Mandrel

352 589 08 15 00

Mandrel

Produtos para reparos

Número

Denominação

Número de pedido

BR00.45-B-1002-04A

Kerosene

-

Produtos para reparos

Número

Denominação

Número de pedido

BR00.45-B-1003-06A

Grease as per DBL 6804 - Class 267.0

-

Referenced documents