Kubota U20-3, U25-3 Excavator Repair Service Manual

Table of Contents

Kubota U20-3, U25-3 Manual

Main sections and selected subjects identified in the source documentation:

• Kubota Excavator Model U20-3, U25-3
• General
• A. Body and engine identification marks…………………………………………………………………………………. I-2
• B. Safety precautions for servicing, disassembly and reassembly………………………………………….. I-3
• a. Safety measures before starting work …………………………………………………………………… I-3
• b. Safety measures during work ………………………………………………………………………………. I-3
• c. Preparation for disassembly ………………………………………………………………………………… I-4
• d. Precautions for disassembly and reassembly…………………………………………………………. I-4
• C. IMPORTANT SAFETY PROCESS AND CRITICAL FUNCTIONAL PROCESS……………….. I-5
• a. Essential Adhesives……………………………………………………………………………………………. I-5
• b. Important Safety Process ……………………………………………………………………………….. I-5
• c. Important Critical Functional Process ……………………………………………………………….. I-5
• D. IMPORTANT INSPECTION ITEMS AFTER REASSEMBLING………………………………………….. I-5
• E. SERVICING FUNDAMENTALS …………………………………………………………………………………I-6
• a. Items for Servicing ……………………………………………………………………………………………… I-6
• b. O-ring, Oil seal, Circlip and Roll Pin………………………………………………………………………. I-8
• c. Piping ……………………………………………………………………………………………………………… I-10
• d. Machine Quality Specifications ……………………………………………………………………………………. I-15
• F. Maintenance intervals ……………………………………………………………………………………………. I-23
• a. Maintenance intervals chart ……………………………………………………………………………….. I-23
• b. Hydraulic Oil Check for machines with Hydraulic Breakers …………………………………….. I-24
• c. Periodic replacement of important parts ………………………………………………………………. I-25
• U20-3, U25-3
• IMPORTANT INSPECTION ITEMS AFTER REASSEMBLING
• a Operate the Kubota U20-3, U25-3 Excavator and check for Unusual Noise and Vibrations.
• b Make Sure the Safety decals and Wire harness Clamps are in their Specified Positions.
• 1) Park the machine on a level ground.
• 3) Keep the machine front as shown as following posture.
• Check all the hydraulic hoses, including those to be replaced at regular intervals, for the following points.
• Tighten up or replace them, as required.