Case 521F - Page 40

2000-7
84581916A Issued 3-12 Printed in E.C.
STEP 24
W110R393
Disconnect the electrical connector (3) from exhaust
sensor (1) before the SCR catalist (2).
STEP 25
W110R394
Disconnect the electrical connector (1) from exhaust
temperature sensor (2) after the SCR catalist.
Tag and disconnect two hoses from Dosing Unit
Injector (3) and disconnect electrical connector (4).
STEP 26
W110R411
Disconnect NOx sensor module (1) from machine
wiring harness.
Remove hex bolts (2) securing NOx sensor module
to mounting support bracket and remove module.
2
3
1
4
2
3
1
2
1