Kubota WG972-E2 Workshop Manual page 93

WG972-E2, DF972-E2, WSM
Vaporizer Piping (DF972-E2)
1. Connect the water hose (1) and (2) through the vaporizer.
2. The water joint part of vaporizer is adjusted to the upper side (A)
and coolant is replenished through radiator, to bleed air in the
vaporizer.
3. Vaporizer (3) is returned to former position.
4. Connect the vapor hose.
5. Connect the vacuum lock hose (4).
6. Tighten the vaporizer (3).
7. Connect the LPG hose.
• O.D. of joint for vapor hose: 12.7 mm (0.5 in.)
• O.D. of joint for water hose: 9.0 mm (0.35 in.)
CAUTION
• All fuel connections added to this engine must be installed
by qualified personnel and utilizing recognized procedures
and standards.
• These non-KUBOTA installed parts, such as hoses, fittings,
piping, should be approved for LPG use and conform to UL,
CSA, NFPA, and all other recognized standards.
• An approved, listed fuel filter and electromechanical
positive shutoff must be installed between the LPG tank and
KUBOTA vaporizer. (Not KUBOTA Provided)
■ NOTE
• The LPG liquid in joint (fitting) to the vaporizer / regulator is
not provided in the KIT by KUBOTA, due to the many
different connection requirements by the OEM.
The female thread into the vaporizer / regulator is a PT 1/4
METRIC thread. To insure good sealing the correct fitting
must by used.
• Vapor hose between the vaporizer and mixer must be of 280
to 320 mm (11.02 to 12.60 in.) in length, to assure correct
emissions and proper operation.
• Perform air bleeding of the vaporizer (water passage).
• Each hose must be tightened with a hose clamp.
(1) Water Hose
(2) Water Hose
(3) Vaporizer
(4) Vacuum Lock Hose
S-23
GASOLINE / LPG ENGINE
A : Water Joint
W1037280
KiSC issued 01, 2006 A