Hummer H1 Service Manual page 796

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OHMMETER LEADS
STRAP
Regulator
REGULATOR
Figure 12-42: Regulator Inspection Points
Inspect the regulator for cracks, breaks, broken contacts, or
surface defects and replace if damaged (Figure 12-42).
Brushes and Brush Holders
BRUSH HOLDER
SPRING
Figure 12-43: Brush Holder and Brushes
Check for broken or disconnected brushes, worn brushes with
length less than 0.5 in. (12.7 mm), and broken or distorted
springs. Replace brush holder and brushes as an assembly if
necessary (Figure 12-43).
05745159
GROUNDED SIDE
STUDS
Figure 12-41: Rectifier Bridge Check
CONTACTS
TEMPORARY
PIN
BRUSH
STRAP
NOTE: The pin that retains the brushes temporarily can be
made from locally obtained parts. A standard paper clip can be
used.
Assemble springs and brushes in the brush holder. Compress
the springs and brushes in the holder and hold them in position
with the temporary pin (pin will be removed after assembly)
(Figure 12-43).
Drive End Frame and Bearing
Inspect the bearing for roughness, looseness in bore, inner race
free play, or damaged seals. Replace the end frame and bearing
as an assembly if damaged (Figure 12-44).
BEARING
Figure 12-44: Drive End Frame Inspection
Inspect the drive end frame for cracks, breaks, or damaged
threads. Replace the assembly if casting is cracked or broken.
Repair minor through-bolt and adjusting bolt thread damage
using a tap. For more serious through-bolt thread damage, re-
place the end frame.
Electrical System
OHMMETER LEADS
POSITIVE SIDE
12-25
DRIVE END
FRAME
4-1-00