TM 5-3810-207-20/TO 36C23-3-37-12 1 Cover, suppression 4 External tooth-type lockwasher, No. 10 (8 rqr) 2 Nut, connector (6 rqr) 5 Internal tooth-type lockwasher, 3/8 in. (2 ,rqr) 3 Ignition cables (8 rqr) 6 Distributor C-Crane and carrier distributor 1 External tooth-type lockwasher, 5/8 in. (3 rqr) 3 Strap, ground suppression 2 Starter motor D-Carrier starter motor Figure 5 - Continued. (2) The   suppression   cover   is   illustrated   on figure 5. (3) The  suppression  receptacle  is  illustrated on figure 5. b. Secondary Suppression Components (crane) (1) Tooth-type lockwashers. (a) The crane generator is mounted on the  left  side  of  the  engine  and  is grounded  by  internal-external  tooth lockwashers to suppress radio interference. Note. If  there  is  excessive  sparking  at  the brushes, it will be necessary to clean the    commutator    and    install    new brushes (par.  72). (b) The    crane    generator    regulator    is mounted on top of the engine and is grounded by internal-external lockwashers. (c) The  crane  distributor  is  mounted  to the   engine   head   and   is   grounded with internal-external type lockwashers to suppress radio interference. (d) The crane starter is mounted on the lower-left  side  of  the  engine  and  is grounded with internal-external type lockwashers to suppress radio interference. (e) The  starter  solenoid  is  mounted  on the    starter    and    is    grounded    by internal-external tooth-type lockwashers and is suppressed from solenoid    to    starter    motor    with    a ground lead. (f) The  crane  engine  is  equipped  with special    shielded    and    suppressed spark plugs to suppress radio interference. (g) Instructions  for  replacement  of  the above  suppression  components  will be found in the applicable maintenance section of this manual. (2) Shielded cables. (a) The   crane   generator   is   equipped with a shielded cable connecting the generator and the generator regulator. (b) The ignition cables that connect the spark  plugs  to  the  distributor  are  of the shielded type. c. Secondary Suppression Components (Carrier). (1) Tooth-type lockwashers. (a) The carrier generator is mounted on the  left  side  of  the  engine  and  is grounded by internal-external tooth- type  lockwashers  to  suppress  radio interference. (b) The  generator  regulator  is  mounted on  the  top-rear  side  of  the  firewall with internal-external tooth-type lockwashers to suppress radio interference. (c) The carrier distributor is mounted in the  left  side  of  the  engine  and  is grounded with internal-external tooth-type  lockwashers  to  suppress radio interference. (d) The  starter  motor  and  solenoid  are mounted on the lower-rear right side of    the    engine    with    internal    and external tooth-type lockwashers and ground     strap     to     suppress     radio interference. 26