Case 980 Excavator Repair Manual
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Case 980 Excavator Repair Manual
Case 980 Excavator Repair Manual - Image 2
Case 980 Excavator Repair Manual - Image 3
Case 980 Excavator Repair Manual - Image 4
Case 980 Excavator Repair Manual - Image 5

THE MANUAL LIBRARY

Case 980 Excavator Repair Manual

$34.00

Documentation Specifications

Manufacturer Case
Applicable Model 980
Machine Type Excavator
Documentation Repair Manual
Publication Reference 9-73476 (May 1977)
Language English
Format PDF

Manuals Provided

Repair Manual 513 pages
Categories: ,

For Case 980 Excavator, this reference brings together the listed repair manual material. Start with General and follow the relevant document section for the task.

What’s Covered Inside

Manuals: Service Manual
General
Engines
Fuel System
Hydraulics
Track and Suspension
Power Train
Brakes
Mounted Equipment
Manual Extract Engine Preignition

Preignition is the igniting of the fuel before the normal ignition occurs. This causes wild pinging, severe knock, and power loss. High temperature and pressure from preignition usually burns a hole through the center of the piston. The following are causes of preignition:

A. Carbon deposits that remain incandescent.
B. Valves operating at higher than normal temperature because of excessive guide clearance or improper seal with valve seats.
C. Hot spots caused by an inefficient or damaged cooling system.
D. Nozzles set at wrong cracking pressure.
E. Detonation or conditions leading to it.
F. Sharp edges in combustion chamber.
G. Wrong or contaminated fuel.

Use publication 9-73476 (May 1977) with the 980 model details to select the appropriate documentation. Refer to General within its stated document and equipment scope.

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