Kubota ZD18 User Manual

4-M3
ZD18(F) · ZD21(F) · ZD28(F), WSM
HYDRAULIC SYSTEM
2. HYDRAULIC PUMP
The oil pump in this engine is a trochoid pump.
Inside the pump body, the 6 lobe inner rotor (2) is
eccentrically engaged with the 7 lobe outer rotor (1). The
inner rotor is driven by the input shaft, which in turn rotate
the outer rotor.
W1012820
(1) Outer Rotor
(2) Inner Rotor
(3) Pump Case
(4) Input Shaft
KiSC issued 04, 2009 A

Kubota ZD18 Specifications

General

Horsepower	18 hp
Transmission	Hydrostatic
Cutting Width	48 inches
Drive	2WD
Engine Type	Diesel
Cutting Height Range	4 inches