Yanmar 4LHA-HTP User Manual

Chapter 5 Lubrication System
7. Rotary Waste Oil Pump (Optional)
7. Rotary Waste Oil Pump (Optional)
A rotary waste oil pump to pump out waste oil during oil
changing is available as an option.
This is a vane type pump. Turning the handle
rotates the vanes and pumps out lube oil.
i 4LHA Seriet
Rotary waste oil pump
Rubber hose
7-1 Construction
Rotary waste oil pump
Delivery capacity
of one stroke
0.13/ (7.93 in.
3
)
Delivery pressure
0.147(1.5) MPa(kgf/ cm) or below
Suction head
less than Im (39.37 in.)
Part No.
124413-39100
Rubber hose
Inner dia. x length
012 x 1000mm
(0.4724 x 39.37 in.)
Part No. of rubber hose
43720-001220
7-2 Inspecting the waste oil pump
(1) Disassemble the waste oil pump and check for spring
breakage or vane damage when there is an extreme
drop in discharge volume, and replace if necessary.
(2) Replace the oil seal if there is excessive oil leakage
from the handle shaft.
(3) Replace the impeller if there is an excessive gap
between the impeller and the covers on both sides of
casing. This will cause a drop in discharge volume.
(4) The hose coupling is coated with adhesive and screw-
ed in. It therefore cannot be disassembled.
5-11

Yanmar 4LHA-HTP Specifications

General

Brand	Yanmar
Model	4LHA-HTP
Category	Engine
Language	English