. OPERATION DETAILED CONTROLS AND GAUGES the the 3 - 37 BLOCK FUSE If the starting motor does not turn even when the st arting switch is turned to the ON position , blo ck fuse (1) is probably blown , so open the c ove r at t he r ight side of t he machine and check or replace the fuse This is a t the top surface of t he battery. For details o f the method of o pening and closing th e cover on the right sid e of the machine , see "MUD COVER (PAG E 3-30)". REMARK A block fuse use wire stalled large-capaci ty c urrent is flowing. It acts in normal f use to protect t he e lectrica burning out u nde r abnormal c urrent. ircuit where a me w ay as a from