IMPACT 4.07.
174 04/12/2023
Printed by:Myint Htun
Service
Chassis ID Path
JPCT 29710 5618/Repair//Air drier, replace
Model Identity
UD-HDE 170603080
Publish date ID/Operation
03/03/2023 56116-2
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
56116-2 Air drier, replace
Illustrations may differ slightly from the actual vehicle being serviced. However, key
components addressed in this information are represented as accurately as possible.
Colours used in illustrations are for highlighting purposes only and do not correspond to the
actual colours of the vehicle.
All threaded fasteners that do not have a tightening torque specification in the information are
tightened to a standard torque. Standard torques are available in the following specification.➠
Standard tightening torques
Special tools
88890086 9992976
1 Position the wheel chocks.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
2 This step contains 2 alternatives.
Select one of the valid alternatives below.
Alternative 1 / 2
Conditions
● If the vehicle is equipped with ADR (European Agreement Concerning the International Carriage
of Dangerous Goods by Road)
▶ Turn off the main switch.
Alternative 2 / 2
▶ Turn off the main switch.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
DANGER
Risk of serious personal injury.
Compressed air can cause serious injury.
▶ Wear a protective face shield, protective clothing and protective shoes when using compressed
air for cleaning.
3 Install the tool.
Required material
CONNECTOR 9992976
Note
The pneumatic system must be depressurized before removing the hoses or the pipes.
4 Drain the pneumatic pressure from all the tanks.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
5 This step contains 2 alternatives.
Select one of the valid alternatives below.
Alternative 1 / 2
▶Perform this procedure when the condition below is met.
Conditions
● If the air drier is equipped with electrical unit.
▶ Disconnect the connector.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
DANGER
Risk of serious injury.
Improperly connected nipples can cause a loss of brake function.
▶ Pay close attention to marking the nipples before removal.
▶ Disconnect the connector.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
▶ Remove the nuts.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
▶ Remove the valve unit.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
▶ Loosen the nut.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
▶ Disconnect the connector.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
▶ Remove the nuts.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
▶ Remove the air drier.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
Alternative 2 / 2
▶Perform this procedure when the condition below is met.
Conditions
● If the air drier is equipped with electrical unit.
▶ Disconnect the connector.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
▶ Loosen the nuts.
▶ Remove the pipe.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
DANGER
Risk of serious injury.
Improperly connected nipples can cause a loss of brake function.
▶ Pay close attention to marking the nipples before removal.
▶ Remove the nipples along with the pipes.
▶ Remove the nuts.
▶ Remove the air drier.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
6 This step contains 2 alternatives.
Select one of the valid alternatives below.
Alternative 1 / 2
▶ Transfer the studs.
▶ Torque tighten the studs.
Tightening torque
Air drier, stud 24 ±6 Nm
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
▶ Remove the parts.
▶ Transfer the parts.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
Alternative 2 / 2
▶ Remove the parts.
▶ Transfer the parts.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
7 This step contains 2 alternatives.
Select one of the valid alternatives below.
Alternative 1 / 2
▶ Install the air drier.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
▶ Install the nuts.
▶ Torque tighten the nuts.
Tightening torque
Air drier, nut 70 ±10 Nm
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
▶ Connect the connector.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
▶ Tighten the nut.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
▶ Install the valve unit.
Note
Use a new O-ring.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
▶ Install the nuts.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
▶ Connect the connectors.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
▶Perform this procedure when the condition below is met.
Conditions
● If the air drier is equipped with electrical unit.
▶ Connect the connector.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
Alternative 2 / 2
▶ Install the air drier.
▶ Install the nuts.
Tightening torque
Air drier, nut 70 ±10 Nm
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
▶ Install the nipples along with the pipes.
Note
Install as noted in removal.
▶ Install the pipe assembly.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
▶ Hand tighten the nuts.
▶ Torque tighten the pipe nuts.
Tightening torque
Cooling coil, nut 120 – 150 Nm
▶Perform this procedure when the condition below is met.
Conditions
● If the air drier is equipped with electrical unit.
▶ Connect the connector.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.174 04/12/2023
8 This step contains 2 alternatives.
Select one of the valid alternatives below.
Alternative 1 / 2
▶ Start the engine to fill the pneumatic system.
Alternative 2 / 2
▶ Install the tool to connect the external source to the air processor unit.
Required material
CONNECTOR 9992976
▶ Fill the pneumatic system.
9 Check for leakage.
Required material
LEAK_DETECTOR 88890086
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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