11. Troubleshooting guide
Case 1. Starting failure |
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| |
| CHECK | PROBABLE CAUSES | ACTION |
| fuel tank | → incorrect fuel | → drain it and use correct fuel |
| fuel filter | → fuel filter is clogged | → clean |
| carburetor adjustment screw | → out of normal range | → adjust to normal range |
| sparking (no spark) | → spark plug is fouled/wet | → clean/dry |
|
| → plug gap is incorrect | → correct (GAP: 0.6 ~ 0.7 mm) |
| spark plug | → disconnected | → retighten |
Case 2. Engine starts but does not keep running/hard |
| ||
| CHECK | PROBABLE CAUSES | ACTION |
| fuel tank | → incorrect fuel or staled fuel | → drain it and use correct fuel |
| carburetor adjustment screw | → out of normal range | → adjust to normal range |
| muffler, cylinder (exhaust port) | → carbon is | → wipe away |
| air cleaner | → clogged with dust | → wash |
| cylinder fin, fan cover | → clogged with dust | → clean |
When your unit seems to need further service, please consult with our KOMATSU ZENOAH® service shop in your area.
Limited warranty
Should any failure occur on the product under normal oper- ating conditions within the applicable warranty period, the failed part will be replaced or repaired free of charge by a KOMATSU ZENOAH® authorized dealer.
WARRANTY PERIOD: 1 year (6 months if used profession- ally, and 30 days if used for rental purpose) from the date of initial purchase.
THE PURCHASER SHALL BEAR COSTS OF TRANS- PORTING THE UNIT TO AND FROM THE KOMATSU ZENOAH DEALER.
THE PURCHASER SHALL NOT BE CHARGED FOR DIAG- NOSTIC LABOR WHICH LEADS TO THE DETERMINATION THAT A WARRANTED PART IS DEFECTIVE, IF THE DIAG- NOSTIC WORK IS PERFORMED AT THE KOMATSU ZENOAH DEALER.
THE PURCHASER OR OWNER IS RESPONSIBLE FOR THE PERFORMANCE OF THE REQUIRED MAINTENANCE AS DEFINED BY THE MANUFACTURER IN THE OWNER/OP- ERATOR MANUAL.
ANY WARRANTED PART WHICH IS NOT SCHEDULED FOR REPLACEMENT AS REQUIRED MAINTENANCE, OR WHICH IS SCHEDULED ONLY FOR REGULAR INSPECTION TO THE EFFECT OF REPAIR OR “REPLACE AS NECES- SARY” SHALL BE WARRANTED FOR THE WARRANTY PE- RIOD. ANY WARRANTED PART WHICH IS SCHEDULED FOR REPLACEMENT AS REQUIRED MAINTENANCE SHALL BE WARRANTED FOR THE PERIOD OF TIME UP TO THE FIRST SCHEDULED REPLACEMNET POINT FOR THE PART.
ANY REPLACEMENT PART THAT IS EQUIVALENT IN PER- FORMANCE AND DULABILITY MAY BE USED IN NON-
WARRANTY MAINTENANCE OR REPAIRS, AND SHALL NOT REDUCE THE WARRANTY OBLIGATION OF THE COMPANY.
THE COMPANY IS LIABLE FOR DAMAGES TO OTHER ENGINE COMPONENTS CAUSED BY THE FAIRURE OF A WARRANTED PARTS STILL UNDER WARRANTY.
THE WARRANTY DOES NOT APPLY TO THOSE UNITS WHICH HAVE BEEN DAMAGED BY NEGLIGENCE OF IN- STRUCTION LISTED IN THE OWNER/OPERATOR MANUAL FOR PROPER USE AND MAINTENANCE OF THE UNITS ACCIDENT MISHANDLING, ALTERATION, ABUSE, IM- PROPER LUBULICATION, USE OF ANY PARTS OR ACCES- SARIES OTHER THAN THOSE SPECIFIED BY THE COM- PANY, OR OTHER CAUSES BEYOND THE CONPANY’S CONTROL.
THIS WARRANTY DOES NOT COVER THOSE PARTS RE- PLACED BY NORMAL WEAR OR HARMLESS CHANGES IN THEIR APPEARANCE.
THERE ARE NO OTHER EXPRESS WARRANTIES.
IMPLIED WARRANTIES INCLUDING THOSE OF MER- CHANTABILITY AND FITNESS FOR A PARTICULAR PUR- POSE ARE LIMITED TO TWO (2) YEARS OF HOME USE [ONE (1) YEAR FOR ANY OTHER USE] FROM THE ORIGI- NAL DELIVERY DATE.
LIABILITIES FOR INCIDENTAL OR CONSEQUENTIAL DAMAGE UNDER ANY AND ALL WARRANTIES ARE EXCLUDED.
IF YOU NEED TO OBTAIN MORE INFORMATION, PLEASE C A L L Y O U R N E A R E S T S E R V I C E C E N T E R , OR CHECK PLEASE KOMATSU ZENOAH WEB SITE http://www.zenoah.net
