11. EXPLANATION OF COMPONENTS 11.14 FUSIBLE LINK If the starting motor will not rotate when the starting switch is turned ON, a possible cause is disconnection of wire-type fusible link a . Open the battery room door on the left side of the machine body to inspect the fusible link and, if necessary, replace it. REMARK A fusible link refers to the large-sized fuse wiring installed in the high current flow portion of the circuit to protect electrical components and wiring from burning, similar to an ordinary fuse. 11.15 CONTROLLERS A pump controller and governor controller are provided. NOTICE Never splash or spill water, mud or drink over the controllers as this may cause a fault.
If a fault occurs in the controller, do not attempt repair, but con- sult your Komatsu distributor. 11.16 TOOL BOX This is used for keeping the tools. 11.17 REFUELLING PUMP (Option) a 1. When the machine is operated on sites with no fuel container and pump, the machine may be refuelled using the refuelling pump a (if fitted) from fuel barrels. The refuelling pump is located next to batteries at the front right hand side of the machine. 2. Place the fuel hose b , which is stored in tray c into the fuel barrel placed next to the machine. 3. Switch on refuelling pump using switch d on the pump assembly when adding fuel, never let the fuel overflow. This may cause a fires.
Notes This pump is protected by a fuse e . If pump fails to function check fuse (10A). Ensure strainer on hose end is clean. PC450-ENG 2-35 WARNING • Do not bring fire or sparks near the fuel. WARNING