Komatsu — WHEN REQUIRED

. MAINTENANCE SERVICE PROCEDURE MAINTENANCE SERVICE PROCEDURE 4 - 39 4. Operate switch ( 3) of the e lectric primin g pump to ON Lamp ( 4) will flas h and the electric prim ing pump will s REMARK tric priming pump switch has a built-in timer, and this actuates and stops the pump automatically. e lamp is flashing, the electric priming pump will stop, but this does not indicate any abnormality. The elec tric primi ng pump switch has a built-in timer, a nd this actuates and stops th e pump automatically While th e lamp is flashing, the electric p riming pump w ill stop, but this does not indic ate any abnormality.

If the sw itch is tur ned to OF F position w hen the lamp is lit, the lamp will go out and th e electric priming pum p will stop. 5. When th e specifi ed time (a pproximately 7 minutes) has passed, lamp (4) automatica lly goes out and the e lectric priming pump sto ps. 6. If the fu el has be en draine d from the fu el circuit, such as when the engine has run out of fuel and stopp ed, or maintenance has been car ried out on t he fuel hoses o r tubes, or the supply pump h as been replaced, tu rn the switch f or the ele ctric primi ng pump to t he ON position again after the electric primin g pump stops automatically (lamp g oes out). oes out, the air bleed operation is completed. 7.

When t he lamp g oes out, t he air bleed operation is co