Kubota L47TL, Operator'S Manual

Page: 143 / 159

117 PERIODIC SERVICE OF THE TRACTOR
Always use a 50/50 mix of long-life coolant and clean soft
water in KUBOTA engines.
Consult your local KUBOTA Dealer concerning coolant for
extreme conditions.
1. Long-life coolant (hereafter LLC) comes in several
types. Use ethylene glycol (EG) type for this engine.
2. Before employing LLC-mixed cooling water, fill the
radiator with fresh water and empty it again.
Repeat this procedure 2 or 3 times to clean up the
inside.
3. Mixing the LLC
Premix 50% LLC with 50% clean soft water. When
mixing, stir it up well, and then fill into the radiator.
4. The procedure for the mixing of water and antifreeze
differs according to the make of the antifreeze and the
ambient temperature. Refer to SAE J1034 standard,
more specifically also to SAE J814c.
D
At 1.013 x 10 Pa (760mmHg) pressure (atmospheric).
A higher boiling point is obtained by using a radiator
pressure cap which permits the development of
pressure within the cooling system.
5. Adding the LLC
(1) Add only water if the mixture reduces in amount
by evaporation.
(2) If there is a mixture leak, add the LLC of the same
manufacturer and type in the same mixture
percentage.
D
Never add any long-life coolant of different
manufacturer. (Different brands may have
different additive components, and the engine
may fail to perform as specified.)
6. When the LLC is mixed, do not employ any radiator
cleaning agent. The LLC contains anticorrosive agent.
If mixed with the cleaning agent, sludge may build up,
adversely affecting the engine parts.
7. Kubota's genuine long-life coolant has a service life of
2 years. Be sure to change the coolant every 2000
hours or every 2 years whichever comes faster.
A The above data represent industry standards that
necessitate a minimum glycol content in the
concentrated antifreeze.
EVERY 3000 HOURS
B
Checking Turbocharger [M62]
Consult your local KUBOTA Dealer for this service.
B
Checking Supply Pump
Consult your local KUBOTA Dealer for this service.
B
Checking and Cleaning EGR System
Consult your local KUBOTA Dealer for this service.
B
Cleaning DPF Muffler
C Removal of ash
The longer the DPF operates, the more ash (burnt
residue) is collected in the filter. Too much ash build-up
adversely affects the DPF performance. Consult your
local KUBOTA Dealer to clean the filter.
A The DPF needs cleaning with a specific cleaning
device. Do not clean the DPF by disassembling, and
attempt by yourself, consult your local KUBOTA
Dealer.
Vol %
Anti-freeze
Freezing Point Boiling Point*
50 -37 -34 108 226