Kubota U35-4 Excavator Repair Manual

Kubota Excavator Model U35-4

Table of Content of the Workshop Service Manual

I General
II Machine body
Mechanism Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .II-M-1
Service Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .II-S-1
V Electrical System
IV Hydraulic System
Mechanism Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IV-M-1
Service Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IV-S-1
III Engine
Mechanism Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .III-M-1
Service Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .III-S-1
IV Orbitrol motor ; structure & function
U35-4

Your KUBOTA dealer is always ready to help so that your excavator offers the best performance. After having carefully read this manual, you will realize that much of the routine maintenance can be done by yourself. Machines must be disassembled and assembled efficiently and safely. It is very important to thoroughly understand the construction and function of the machine, to make all appropriate preparations, and start operations according to the specified working procedures in this workshop service manual.

IMPORTANT INSPECTION ITEMS AFTER REASSEMBLING
a Operate the Kubota U35-4 Excavator and check for Unusual Noise and Vibrations.
b Make Sure the Safety decals and Wire harness Clamps are in their Specified Positions.
c With the Machine Front in a Specified Posture, Check the Amount of Hydrauric Oil Checking the oil level (For further details, refer to the Excavator U35-4 Operators Manual)
1) Park the machine on a level ground.
2) Make sure the hydraulic oil temperature is in the range of 10-30C (50-86F) and see if the oil level is within the specified zone of the oil level gauge.
3) Keep the machine front as shown as following posture.
Evaporator

The evaporator takes the refrigerant, which has been made liquid by the condenser and cooled and put under low-pressure by the expansion valve, and by evaporating it, the heat and humidity of the air passing through the evaporator is removed, thus producing cool, dehumidified air.

Heater Core
The heater core dissipates the heat of the heated engine coolant. So, the air that is blown through it by the blower motor passes through the fins of the heater
Blower
The blower is built into the right side of the AC unit.
The blower forces cool, warm or fresh outside air through the vents into the cabin.

The rpm of the blower motor can be adjusted to three levels with the blower resistor. The blower fan is the type that uses centrifugal force and it sucks in air parallel to its axis of rotation and blows it out perpendicular to the centrifugal force, or in other words, perpendicular to the axis of rotation.