Complete digital official shop manual contains service, maintenance, and troubleshooting information for the Komatsu HD325-7, HD325-7R, HD405-7, HD405-7R Dump Truck. Diagnostic and repair procedures are covered in great detail to repair, maintain, rebuild, refurbish or restore your dump truck like a professional mechanic in local service/repair workshop. This cost-effective quality manual is 100% complete and intact as should be without any missing pages. It is the same factory shop manual used by dealers that guaranteed to be fully functional to save your precious time.

This manual for Komatsu HD325-7, HD325-7R, HD405-7, HD405-7R Dump Truck is divided into different sections. Each section covers a specific component or system and, in addition to the standard service procedures, includes disassembling, inspecting, and assembling instructions. 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. It is in the cross-platform PDF document format so that it works like a charm on all kinds of devices. You do not need to be skilled with a computer to use the manual.

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EXCERPT:

50 Disassembly and assembly

Adjustment
If the result of the inspection shows that the correct tooth contact is not being obtained, adjust again as follows.
1] If bevel pinion is too far from center line of bevel gear. Contact is at the small end of the convex tooth face of the bevel gear and at the big end of the concave tooth face.
- Procedure for adjustment
Adjust the thickness of the shims at the to move the bevel pinion in direction (A), nearer to the bevel gear.
Using shims or the adjustment nut of the bevel gear bearing cage, move the bevel gear in direction (B) by the same amount that the bevel pinion has moved in direction (A). Check the tooth contact pattern and backlash.
2] If bevel pinion is too close to center line of bevel gear. Contact is at the small end of the concave tooth face of the bevel gear and the big end of the convex tooth face.
- Procedure for adjustment
Adjust the thickness of the shims at the bevel pinion to move the bevel pinion in direction (A), away from the bevel gear. Using shims or the adjustment nut of the bevel gear bearing cage, move the bevel gear in direction (B) by the same amount that the bevel pinion has moved in direction (A). Check the tooth contact pattern and backlash.
- When adjusting the bevel gear to the right or left, do not change the preload of the bearing. Always turn the adjustment nuts at both ends the same amount in the same direction.
5) After adjusting tooth contact and backlash, install lock plate (22).
13. Case After completing adjustment of the tooth contact and backlash, coat case (11) mounting
bolts with thread tightener and tighten fully.
- After tightening, rotate the bearing 20 - 30 turns again, and check again that the bearing rotates smoothly.
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