TM 10-3930-643-20 CHAPTER  11 FRAME   AND   TOWING   ATTACHMENTS TROUBLESHOOTING    AND    MAINTENANCE CHAPTER  OVERVIEW The   purpose   of   this   chapter   is   to   help   the   technician   efficiently   troubleshoot and   repair   malfunctioning   equipment   and   to   perform   authorized organizational support   level   maintenance   procedures   on   the   M10A   Forklift   frame a n d    r e l a t ed components. Title Frame  and Roll   Over INDEX Paragraph Page Towing   Attachments   Troubleshooting 11-1 11-2 Protective   Structure (S/N  2000  and  below) 11-2 11-3 Step,   Ladder   and   Rail 11-3 11-12 Pintle  Hook  and  Drawbar 11-4 11-16 Hinge   Pin   Lubrication   Fittings 11-5 11-20 Bolster   Lines   and   Fittings 11-6 11-24 11-1