Drive Belt Adjustment; Belt Tension - Ford LSG 875 Service Manual

4-18
CHARGING
4-18
DISASSEMBLY AND ASSEMBLY
(Continued).
17. Align the terminal screws on the rectifier as-
sembly with the holes in the back of the rear
housing and install the stator rectifier assem-
bly in the rear housing. Make certain the termi-
nal insulators are seated in their recesses.
18. Install the external insulators, washers and
nuts on the terminals. The insulators are color
coded as follows: ,
Black on the stator (STA) terminal. Tighten
nut to 2.8-3.9 Nom (25-35 in-lb).
Red on the battery (BAT) terminal. Tighten nut
to 3.4-6.2 Nern (30-55 in-lb).
Orange on the field (FLD) terminal. Tighten
nut to 2.8-3.9 Nom (25-35 in-lb).
19. Wipe the rear end bearing surface of the rotor
shaft with a clean, lint-free rag.
20. Position the rear housing and stator assembly
over the rotor and align the scribe marks
made during disassembly.
21. Seat the machined portion of the stator core
into the stop in both end housings and install
the housing through bolts. Tighten the bolts to
4.1-6.7 Nom (35-60 in-lb).
22. Remove the wire holding the brushes.
CAUTION:
This step is important so that reg-
ulator will not be damaged.
ADJUSTMENTS
DRIVE BELT
The fan drive belt should be properly adjusted at
all times. A loose drive belt can cause improper
alternator, fan and water pump operation. A belt
that is too tight places a severe strain on the water
pump and alternator bearings.
A properly tensioned drive belt minimizes noise
and also prolongs the service life of the belt.
Therefore, it is recommended that a belt tension
gauge be used to check and adjust the belt ten-
sion.
Any belt that has been operated for a
minimum of 10 minutes is considered a used
belt, and when adjusted, it must be adjusted to
the used belt tension shown in the
specifications.
BELT TENSION
1. Install the belt tension tool on the drive belt
and check the tension.
2. If adjustment is necessary, loosen the alter-
nator mounting bolts and move the alternator
adjusting arm bolts. Move the alternator to-
ward or away from the engine until the correct
tension is obtained. Remove the gauge.
3. Tighten the alternator adjusting arm bolt and
the mounting bolts. Install the tension gauge
and check the belt tension.