GMC T Series 1994 Repair Manual page 585

C. Note the ampere reading. A high reading indi­
cates a shorted or grounded winding, and a low
reading indicates excessive resistance.
• The resistance of the windings can be read
directly using a digital ohmmeter that can
measure tenths of an ohm.
ASSEMBLY OF THE SD-300 STARTER MOTOR
SOLENOID
Assemble (Figure 9)
*
1. New solenoid disc assembly if needed.
2. End cover to the solenoid body.
3. Screws attaching the end cover.
4. Nuts to the " S" terminal and the motor terminal.
BRUSHES
*
Assemble (Figure 8)
1. Brushes (33) into the brush holders.
2. Brush springs (64).
3. Brush holder pivot pins (63).
• Coil resistance can be determined by divid­
ing the voltage by the current (amperes) list­
ed in " Specifications" at the end of this
section.
DRIVE END H O USIN G AND
FIELD FRAME
❖ Assemble (Figures 3, 18, and 19)
1. Solenoid plunger (2) to the shift lever (1) with the
roll pin (40).
2. Lever assembly in the drive housing (31) with lever
shaft (43), washer, and nut (44).
• Make sure the shift lever pivots freely.
Important
• Lightly lubricate the end frame bushings. Avoid
excessive lubrication. Use Delco-Remy Lubri­
cant No. 1960954 or equivalent.
• Lightly lubricate the shaft underneath the drive
assembly with a silicone grease. Use Del­
co-Remy lubricant 1960954 or equivalent. The
drive assembly does not require lubrication.
3. Drive* assembly (32) on the armature shaft.
• Slide the drive assembly on the shaft with the
pinion gear toward the shaft end.
4. Stop collar (39) on the shaft with the cupped end
away from the pinion gear.
5. Retainer ring (37) on the shaft (figure 18).
A. Place the ring on the end of the shaft.
B. With a wood block on the top of the ring, force
the ring onto the shaft with a light hammer
blow.
C. Slide the ring down and into the shaft groove.
Do not distort the retainer ring when installing it.