GMC 4000 Series Service Manual page 441

Sec. 6Y
Page 430
A/C GENERATING SYSTEM
GENERATOR MODEL
M ake.........................................
Rotation (View ing Drive En d ).
Brush Spring Tension ( O z .) ..
Field Current at 80° F.
A m p s.....................................
V o lts......................................
Output at Specified Voltage
Specified V o lts....................
A m p s*...................................
Generator RPM (A p p r o x .)..
A m p s.....................................
Generator RPM (A p p ro x .)..
Rated Hot Output.
* lf generator output is checked w ithout a regulator, output should be 5-10% higher than the value given.
DESCRIPTION
Generator Pulley Nut
Except " L " and M odels................................................................................................................................................
" D L "
" L " and " D L" Models
With 42-Amp G enerator.......................................................................................................................................................
With 61- or 62-Amp Generator...........................................................................................................................................
Generator Adjusting Arm To Anchor B ra c k e t.........................................................................................................................
Generator To Mounting B racket Pivot Bolt*
Except " L " and " D L" M odels................................................................................................................................................
" L " and " D L" M odels.............................................................................................................................................................
Generator Mounting Bracket To Su p p o rt.................................................................................................................................
Generator Support To En g ine.....................................................................................................................................................
Generator Mounting B racket To Engine
" L " and " D L" M odels.............................................................................................................................................................
EM ES-4500; EM ES SM S S-5500; EM SM -6500..........................................................................................................
EG SG-5500; EG-6500..............................................................................................................................................................
^Tighten pivot bolts prior to tightening other mounting bolts.
M a k e ...................................................................................................................................
M odel................................................................................................................................
Field Relay
A ir Gap ( i n .) ............................................................................................................
Point opening ( I n c .) ...............................................................................................
Closing Voltage (R a n g e )........................................................................................
Voltage Regulator
Point Opening ( I n . ) ................................................................................................
Am bient T em p e ra tu re*.........................................................................................
^Operation on lower contacts must be .05-.4 volt lower than on upper contacts
Degree F........................................................................
Voltage Settin g .............................................................
M a k e ...................................................................................................................................
M odel..................................................................................................................................
Field Relay Closing Voltage Range................................................................................
Am bient tem p eratu re*....................................................................................................
^Allowable range at " 0" position of adjusting screw.
Degrees F ......................................................................
Voltage Setting ............................................................
G M C S E R V I C E M A N U A L
SPECIFICATIONS
ALTERNATING CURRENT GENERATING SYSTEM SPECIFICATIONS
1100842
Delco-Remy
Clockwise
2 2 2.6
. -
12
14.0
28
2000
40
5000
42
TORQUE SPECIFICATIONS
T W O -U N IT T Y P E R E G U L A T O R S S P E C IF IC A T IO N S
TEMPERATURE VOLTAGE CHART
65
13.9-15.0
FULL TRANSISTOR TYPE REGULATOR SPECIFICATIONS
TEMPERATURE VOLTAGE CHART
65
14.1-14.8
1100849
Delco-Remy Delco-Remy
Clockwise Clockwise
4.14-4.62
2 2 2.6
. -
12
14.0
33
2000
58
5000
61
Delco-Remy Delco-Remy
1119507
0.015
0.030
3.8-7.2
0.014
See chart below
85 105
13.8-14.8 13.7-14.6 13.5-14.4
Delco-Remy
85 105
13.9-14.7 13.7-14.5 13.6-14.3
1117754 1117128
Delco-Remy
Clockw ise
10
2.22-2.4
12 12
14.0 14.0
20 40
1100 1100
55 126
2500 2500
62 130
TORQUE
TYPE OF
PART (FT. LBS.)
55-65
Nut
40-50
Nut
60-65
Nut
25-30
Bolt
20-25
Nut
15-20
Nut
40-50
Bolt
40-50
Bolt
40-50
Bolt
40-50
Bolt
Nut 25-30
50-60
Bolt
Delco-Remy
1119515
0.015
0.030
1.5-3.2
0.014
145 125 165
185
13.4-14.2 13.2-14.0 13.1-13.9
Delco-Remy
1116374 1116378
4.5-6.5 2.0-3.0
See chart below
125 145
13.4-14.2 13.2-14.0
165 185
13.1-13.8