Lubricating System; General - Kubota WG1605-G-E3 Workshop Manual

WG1605-G-E3,WG1605-L-E3,WG1605-GL-E3, WSM

2. LUBRICATING SYSTEM

[1] GENERAL

Engine lubricating system may be classified as:
• Full pressure feed type
• Pressure feed and splash type
KUBOTA engines have lubricating system of full pressure feed type.
This system consists of an oil strainer (11), oil pump (12), relief valve (10), oil filter cartridge (9) and oil pressure
switch (2).
The oil pump sucks lubricating oil from the oil pan through the oil strainer and the oil flows down to the oil filter,
cartridge where it is further filtered. Then the oil is forced to crankshaft (13), connecting rods (8), idle gear (14), PTO
shaft (15), camshaft (6) and rocker arm shaft (3) to lubricate each part through the oil gallery.
Some part of oil, splashed by the crankshaft or leaking and dropping from gaps of each part, lubricates following
parts.
• Pistons (7)
• Cylinder walls
• Small ends of connecting rods
• Tappets (5)
• Push rods (4)
• Intake and exhaust valves (16)
• Timing gears
1-M6
ENGINE
(1) Rocker Arm
(2) Oil Pressure Switch
(3) Rocker Arm Shaft
(4) Push Rod
(5) Tappet
(6) Camshaft
(7) Piston
(8) Connecting Rod
(9) Oil Filter Cartridge
(10) Relief Valve
(11) Oil Strainer
(12) Oil Pump
(13) Crankshaft
(14) Idle Gear
(15) PTO Shaft
(16) Valve
9Y1210661ENM0030US0
KiSC issued 01, 2012 A