Changing Coolant; Remedies For Quick Decrease Of Coolant; Checking Radiator Hoses And Clamp - Kubota D1503-M-E Operator's Manual

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18 PERIODIC SERVICE
3. When the coolant level drops due to evaporation, add
water only up to the full level.
4. Check to see that two drain cocks; one is at the
crankcase side and the other is at the lower part of the
radiator as figures below.
(1) Coolant drain cock
A If the radiator cap has to be removed, follow the
caution and securely retighten the cap.
A If coolant should be leak, consult your local KUBOTA
dealer.
A Make sure that muddy or sea water does not enter the
radiator.
A Use clean, fresh water and 50% anti-freeze to fill the
recovery tank.
A Do not refill reserve tank with coolant over the "FULL"
level mark.
A Be sure to close the radiator cap securely. If the cap is
loose or improperly closed, coolant may leak out and
decrease quickly.
BChanging coolant
1. To drain coolant, always open both drain cocks and
simultaneously open the radiator cap as well. With the
radiator cap kept closed, a complete drain of water is
impossible.
2. Remove the overflow pipe of the radiator pressure cap
to drain the reserve tank.
3. Prescribed coolant volume (U.S.gallons)
Models
D1503-M-E,D1703-M-E
D1803-M-E
V2003-M-E,V2203-M-E
V2003-M-T-E,V2403-M-E
A Coolant quantities shown are for standard radiators.
4. An improperly tightened radiator cap or a gap between
the cap and the seat quickens loss of coolant.
5. Coolant (Radiator cleaner and anti-freeze)
Season
Pure water and radiator
Summer
Winter (when temperature Pure water and anti-freeze
drops below 0 C (32 F)) (See "Anti-freeze" in
or all season RADIATOR Section)
BRemedies for quick decrease of coolant
1. Check any dust and dirt between the radiator fins and
tube. If any, remove them from the fins and the tube.
2. Check the tightness of the fan belt. If loose, tighten it
securely.
3. Check the internal blockage in the radiator hose. If
scale forms in the hose, clean with the scale inhibitor
or its equivalent.
BChecking radiator hoses and clamp
To avoid personal injury:
A Be sure to check radiator hoses and hose
clamps periodically. If
damaged or coolant leaks, overheats or severe
burns could occur.
Check to see if radiator hoses are properly fixed every 200
hours of operation or 6 months, whichever comes first.
1. If hose clamps are loose or water leaks, tighten hose
clamp securely.
Quantity
5.5 L (1.45 U.S.gal.)
5.8 L (1.53 U.S.gal.)
8.1 L (2.14 U.S.gal.)
8.4 L (2.22 U.S.gal.)
Coolant
cleaner
radiator hose is