MacDon M2170 Operator's Manual page 467

7. DEF hoses are held on with plastic retaining clips (A). Push
the middle of retaining clip (A) to release it, and pull the
hoses away from the connector to remove them.
8. Remove six screws (B) that secure DEF head (A) to the DEF
tank, and remove the DEF head.
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MAINTENANCE AND SERVICING
Figure 5.140: DEF Hose Connector
Figure 5.141: DEF Tank Head – Top View
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A
A
A
B
Revision A