TM 5-3810-207-20/TO 36C23-3-37-12 56.        Carrier    Transmission    and    Transfer    Case Overheat Probable cause Possible remedy Insufficient or Fill to level with proper improper lubricant. lubricant (LO 5-3810- 207-20). Rods and levers out of Adjust the alinement adjust. (pars.  308 and 309). 57.      Carrier   Differentials   Excessively   Noisy   While Driving Probable cause Possible remedy Wheel bearings worn Replace wheel bearings (pars.  284 and 286). Lack of lubricant or use Check lubrication for of improper grade of proper grade and amount lubricant in differ- as specified in LO ential. 5-3810-207-20. Differential gears worn Report to field main- or out of adjustment. tenance.  3d echelon. Section V.  FIELD EXPEDIENT REPAIRS 58.  General Organizational    maintenance    troubles    may    occur while  the  crane-shovel  is  operating  in  the  field  where supplies  and  repair  parts  are  not  available  and  normal corrective   action   cannot   be   performed.      When   this condition exists, the following expedient repairs may be used   in   emergencies,   upon   the   decision   of   the   unit commander.    Equipment  so  repaired  must  be  removed from    operation    as    soon    as    possible    and    properly repaired before being placed in operation again. 59.  Air Cleaner Does Not Function Trouble Expedient remedy Air cleaner clogged Remove the filter element (TM 5-3810-207-10) and operate engine until new filter element can be obtained. 60.  Radiator Hose Looks Trouble Expedient remedy Hose leaks Tape hose and operate engine until a new hose can be installed. 61.  Loss of Fuel Trouble Expedient remedy Cracked fuel line Tape fuel line and operate until a new line can be installed. Gasket broken on Remove sediment bowl and sediment bowl. make new gasket from a piece of heavy paper; use until a new gasket can be installed. 62.  Engine Overheats Trouble Expedient remedy Defective thermostat Remove defective thermo- stat and operate without thermostat until a new one can be installed (pars.  98 and 259). 63.  Ignition Switch Fails to Make Contact Trouble Expedient remedy Defective ignition Install a jumper wire switch. across the ignition switch terminals and operate until a new ignition switch can be installed. 64.  Light Switch Will Not Operate Trouble Expedient remedy Defective light Use same procedure as in switch. paragraph 63. Section VI.  RADIO INTERFERENCE SUPPRESSION 65.        General    Methods    Used    to    Attain    Proper Suppression Essentially,  suppression  is  attained  by  providing  a low resistance path to ground for the stray currents.  The methods  used  include  shielding  the  ignition  and  high- frequency   wires,   grounding   the   frame   with   bonding straps, and using capacitors and resistors.  For general information  on  radio  interference  suppression  see  TM 11-483. 66.  Interference Suppression Components a. Primary Suppression Components. (1) The interference ground strap is illustrated on figure 5. 24