Volkswagen CJDA Workshop Manual page 502

3
Industriemotoren - Industrial Engines 2009 ▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
Special tools and workshop equipment required
◆ Adapter -3400-
Test prerequisite
● Poly V-belt tension OK and alternator secured properly
Test procedure
– Remove protective cap from poly V-belt pulley with free-
wheel.
– Insert adapter -3400- in poly V-belt pulley (with freewheel)
on alternator.
– Using a 17 mm ring spanner on adapter -3400-, turn drive
shaft of alternator anti-clockwise via poly V-belt pulley.
If only the drive shaft in the poly V-belt pulley turns and the con-
tact surface of the pulley remains stationary:
– Renew poly V-belt pulley with freewheel clutch
removing and installing poly V-belt pulley.
If the contact surface of the poly V-belt pulley turns along with
the drive shaft in poly V-belt:
– Clip protective cap onto poly V-belt pulley with freewheel.
– Check alternator -C- and voltage regulator -C1-
3 Current flow diagrams
Note
◆ The current flow diagrams below are only examples for cir-
cuits, since due to the various use cases of industrial en-
gines it is not possible to specify common circuits.
◆ The specified cross-section values are minimum values. De-
pending on the relevant unit, larger cross-sections may ap-
ply and must be adhered to accordingly when performing
any repair work.
WARNING
Always disconnect the battery earth strap before working
on the electrical system.
Observe safety precautions
Observe rules for cleanliness
Current flow diagrams:
◆ Vehicles/machines compliant with emission standard (97/68
stage 3a), engine codes CPYA, CPYB,CPYC, CPYD, CPYE
⇒ P age
487.
◆ Vehicles/machines compliant with emission standard (97/68
stage 3b), engine codes CPYA, CPYB, CPYC, CPYD, CPYE
⇒ P age
501.
486 Repair Group 27 - Starter, current supply, CCS
⇒ P age
⇒ P age
⇒ P age
354.
⇒ P age
354.
480,
474.