AR20.10-W-1271J | Remove/install coolant pump | 23.11.10 |
ENGINE 900.9 in MODEL 375.1, 970, 972, 975, 976
ENGINE 902.9 in MODEL 375.3, 950.5 /6, 952.5 /6, 953.6, 954.5
ENGINE 902.9 in MODEL 375.1, 970, 972, 974, 975, 976
ENGINE 924.9 in MODEL 958.0, 970, 972, 974, 975, 976
ENGINE 925.9 in MODEL 970, 972, 974
ENGINE 926.9 in MODEL 950.5 /6, 952.5 /6, 953.6, 954.5, 958.2
ENGINE 926.9 in MODEL 958.0
W20.10-1046-09
Shown on engine 900.9
1 Coolant pump
2 Connecting piece
3 Connection fitting
4 Coolant hose
5 Coolant hose
6 Poly-V-belt
7 Belt pulley
14 Coolant hose
15 Coolant line (only for vehicles with code (MS4) BlueTec 4 or with code (MS5) BlueTec 5)
16 Poly-V belt tensioning device
17 Oil filter housing
8 Bracket
9 Crankcase ventilation hose
10 Wiring harness
11 Electrical connector
12 Connection fitting
13 Coolant line
Modification notes
| 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 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. | |
2 | Tilt cab | Installation: Only tilt cab back after leak test has been conducted. | |
| Notes on tilting the cab | ||
3 | Drain coolant | ||
4 | Remove soundproofing on frame at top left and right | ||
5 | Remove charge air pipe from turbocharger to charge air cooler | ||
6 | Remove bracket (8) | | |
7 | Slacken bolts at belt pulley (7) | | |
8 | Slacken poly-V belt (6) and remove from belt pulley (7) | Do not remove fan and poly-V belt (6). | |
9 | Remove belt pulley (7) | ||
10 | Remove poly-V-belt tensioning device (16) on oil filter housing (17) | | |
11 | Detach engine vent hose (9) at oil separator | ||
12 | Remove coolant pipe on connection piece (2) | Only for vehicles with code (BA1) Performance-optimized Voith retarder or code (BA9) Voith secondary retarder R 115 or for vehicles with transmission 723. | |
13 | Disconnect electrical connector (11) from coolant temperature sensor and expose electrical wiring harness (10) | ||
14 | Take off coolant hose (4) from connection piece (2) | ||
15 | Unscrew connection fitting for coolant hose (4) from connection piece (2) | Only on engine 926.9 in model 950, 952, 953, 954, 958. | |
16 | Remove coolant hose (5) from connection fitting (3) | ||
17 | Detach coolant hose (14) at coolant pump (1) | ||
18 | Detach coolant line (13) at coolant pump (1) | ||
19 | Remove coolant line (15) from coolant pump (1) and oil filter housing (17) | Only for vehicles with code (MS4) BlueTec 4 or with code (MS5) BlueTec 5. | |
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20 | Remove coolant pump (1) together with connection piece (2) and remove connection piece (2) | Push bracket on crankcase breather line to side. | |
Installation: Position coolant pump (1) with lower bolts, install connection piece (2) on connection fitting (12) and tighten together with coolant pump (1). | |||
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21 | Remove connection fitting (12) from coolant pump (1) | Installation: Grease new connection fitting (12) with ATE grease. | |
22 | Remove connection fitting (3) from coolant pump (1), remove O-rings and coolant thermostat () | | |
23 | Check coolant thermostat | Only in event to of complaint regarding coolant thermostat | |
24 | Clean sealing surfaces on coolant pump (1) and connection piece (2) | Installation: Glue seals to coolant pump (1) and connection piece (2) with sealant. | |
25 | Install in the reverse order |
Belt tensioning device
Number | Designation | Engines | Engine | |
BA13.25-N-1001-01C | Bolt of poly-V-belt tensioning device to oil filter housing | Nm | 50 | 50 |
Oil filter
Number | Designation | Engines | Engine | |
BA18.20-N-1001-01B | Bolt, oil filter housing to crankcase | Nm | 25 | 25 |
Coolant pump, coolant thermostat
Number | Designation | Engines | Engine | ||
BA20.10-N-1001-01C | Bolt, coolant pump to crankcase | Nm | 25 | 25 | |
BA20.10-N-1002-01C | Bolt, pulley to coolant pump | Nm | 25 | 25 | |
BA20.10-N-1003-01C | Bolt, connection piece of coolant pump to cylinder head | Nm | 50 | 50 | |
BA20.10-N-1004-01C | Coolant line coolant thermostat to coolant pump | Nm | 25 | 25 | |
BA20.10-N-1005-01C | Bracket to coolant pump | Nm | 50 | 50 | |
Repair materials
Number | Designation | Order number |
BR00.45-Z-1012-01A | Sealant, Omnifit FD 3041 | A 002 989 47 20 10 |
BR00.45-Z-1014-06A | ATE grease | - |