Ford Transit 2002 Owner's Manual page 1056

Component Tests
Accessory Drive Belt Tensioner - Static Check
The accessory drive belt tensioner may be checked statically as follows:
1. 1. Inspect the area surrounding the accessory drive belt tensioner for lubricant or
other contamination. Rectify any leaks before installing a new accessory drive belt
tensioner. If the accessory drive belt tensioner is contaminated, do not attempt to
clean it as the damping mechanism inside may be damaged. INSTALL a new
accessory drive belt tensioner as necessary.
REFER to: Accessory Drive Belt Tensioner - 1.8L Duratec-DOHC (85kW/115PS) -
Zetec (303-05 Accessory Drive, Removal and Installation) /
Accessory Drive Belt Tensioner - 1.8L Duratorq-TDCi (Lynx) Diesel/1.8L Duratorq-
TDDi (Lynx) Diesel
TEST the system for normal operation.
2. 2. Detach the accessory drive belt in the area of the accessory drive belt tensioner.
3. NOTE: The accessory drive belt tensioner has a damping feature, which is usually a
friction device, therefore some friction within the system is normal.
3. Using the correct tool, move the accessory drive belt tensioner from its relaxed
position through its full stroke and back to the relaxed position to make sure there
is no excessive stick, grab or bind, and to make sure there is tension on the
accessory drive belt tensioner spring.
4. 4. Rotate the accessory drive belt tensioner pulley and check for damage, freedom of
rotation and alignment. INSTALL a new accessory drive belt tensioner as necessary.
REFER to: Accessory Drive Belt Tensioner - 1.8L Duratec-DOHC (85kW/115PS) -
Zetec (303-05 Accessory Drive, Removal and Installation) /
Accessory Drive Belt Tensioner - 1.8L Duratorq-TDCi (Lynx) Diesel/1.8L Duratorq-
TDDi (Lynx) Diesel
TEST the system for normal operation.
5. 5. If the accessory drive belt tensioner meets the above criteria, proceed to test the
accessory drive belt tensioner dynamically. If the accessory drive belt tensioner
does not meet the above criteria, INSTALL a new accessory drive belt tensioner.
REFER to: Accessory Drive Belt Tensioner - 1.8L Duratec-DOHC (85kW/115PS) -
Zetec (303-05 Accessory Drive, Removal and Installation) /
Accessory Drive Belt Tensioner - 1.8L Duratorq-TDCi (Lynx) Diesel/1.8L Duratorq-
TDDi (Lynx) Diesel
TEST the system for normal operation.
Accessory Drive Belt Tensioner - Dynamic Check
The accessory drive belt tensioner may be checked dynamically as follows:
1. 1. With the engine running, observe the accessory drive belt tensioner movement.
The accessory drive belt tensioner should move (respond) when the engine is
accelerated rapidly or when the A/C clutch cycles ON and OFF (the degree of
* Pulley(s). section. Only INSTALL a new accessory drive
belt if the fraying is within the criteria quoted in
the Visual Inspection section. TEST the system
for normal operation.
*
rotation and alignment. INSTALL new
components as necessary. TEST the system for
normal operation.
(303-05 Accessory Drive, Removal and Installation).
(303-05 Accessory Drive, Removal and Installation).
(303-05 Accessory Drive, Removal and Installation).
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CHECK the pulley(s) for damage, freedom of