Complete workshop & service manual with electrical wiring diagrams for Komatsu Bulldozers, Dozer Shovel D40A-1, D40P-1, D41E-6, D41P-6, D45A-1, D45P-1, D45S-1. It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

This Komatsu Bulldozers Dozer Shovel D40A-1, D40P-1, D41E-6, D41P-6, D45A-1, D45P-1, D45S-1 service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

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EXCERPT:
FUEL INJECTION PUMP
CHECKING AND INSPECTION
A. Air tightness of the plunger barrel
To test for air-tightness. Assemble the related parts in the standard condition and apply air pressure at 2 kg/em 2 into the plunger barrel through the fuel inlet port. Check for air leak.
B. Play of the tappet
Measure the play of the tappet (1) by using a dial gauge (2).
C. Suction function of the delivery valve
Give a light push to the valve with the valve seat bottom closed by a finger. Then, check the valve by releasing the finger to see if the valve springs back easily.
D. Sliding condition of the plunger
Hold the plunger at approx. 60 from the vertical, and check to see if the plunger slides down smoothly without interruption.
* This action should be repeated several times by turning the plunger around.
* If there is a trouble in the delivery valve plunger, replace it as a set for one machine.
E. Air tightness at the feed pump
Securely plug the discharge port of the pump and immerse the pump in an oil bath, then apply air pressure at 2 kg/cm2
Check the pump for air leak.
F. Suction capacity of the feed pump
Connect a pipe, 2 m long and 8 mm in I.D. to the suction port of the pump. Then, pump at a rate of approx. 100 strokes/min. At this pumping rate, measure the number of strokes required to pump up fuel oil from a point 1 m below; till the oil is discharged from the pump's outlet.