Pontiac FIREBIRD 1972 Service Manual page 789

ENGINE ELECTRICAL 6E-27
worn or rough bearings with a new bearing which
will be prepacked with proper amount and type of
lubricant.
Place flat plate over bearing and press in from outside
toward inside of frame until bearing is flush with
outside of end frame. Support inside of frame with
hollow cylinder to prevent breakage of end frame.
Use extreme care to avoid misalignment or otherwise
placing undue stress on bearing.
From inside of frame, insert seal flush against bear-
ing.
Install stator and connect leads.
ASSEMBLE GENERATOR (SI and 10 DN)
1. Before assembling rotor and drive end frame to slip
ring end frame, make sure bearing surfaces of shaft
are perfectly clean.
2. Join together two end frames, matching scribe marks.
3. Install four thru bolts.
4. Remove wood or toothpick from brush holder assem-
bly.
INSTALL I N CAR (SI and 10 DN)
1. If removed from car, install generator to mounting
bracket with bolts, washers, and nuts. Do not tighten.
2. Install generator drive belt.
-
3. Tighten belt to the specified belt tension. See Section
6A for proper belt tensioning procedures.
4. Tighten bolts to 30 lb. ft., except bolt at sliding slots
on brackets which is 20 lb. ft.
5. Install generator terminal plug and battery lead to
generator.
6. Connect positive battery terminal.
CAUTION: Take care not to reverse polarity.
BATTERY CONDITION
Most charging system troubles show up as an under-
charged or overcharged battery. Since the battery itself
may be defective, it should be checked first to determine
its condition. Second, the generator drive belt should be
checked for proper tension, and all wiring should be visu-
ally inspected for loose or corroded connections. Also, in
the case of an undercharged battery, check for battery
drain caused by grounds or by accessories being turned on
at all times.
CAUTION: Do not short between or ground
any of the terminals on the generator. Do not
attempt to polarize the generator.
To check for an undercharged battery condition, as evi-
denced by slow cranking, follow Charging Circuit
Preliminary Checks, Fig. 6E-17 (SI) or Fig. 6E-21 (10
DN). For an overcharged battery, as evidenced by exces-
sive water usage, refer to Trouble Charts, Figs. 6E-17 thru
6E-2 1.