Kubota DG972 E2, Applications Manual, Page: 38 / 93

3-2
2. EXCEPTIONS (WG752, WG972)
When it is necessary to offset the installation positions of the catalyst parts to avoid part interference or etc, a
spacer can be used between the exhaust manifold and catalyst parts.
IMPORTANT
Only for WG752 with all exhaust manifold
• Allowable max thickness of the spacer is 13 mm (0.51 inch).
Only for WG972 with the exhaust manifold (EG511-1231 ∆ , EG511-1233 ∆ )
• Allowable max thickness of the spacer is 20 mm (0.78 inch).
CAUTION
• Kubota gasket must be installed on both sides of the spacer.
• The surface-roughness of both Sides of the spacer must be less than 3.2a (3.2 µm).
And allowance of levelness must be less than 0.2 mm.
• The material of the spacer must be corresponding of SPHC.
• Tighten torque must be within 23.5 to 27.5 N·m (17.33 to 20.28 lb·ft)
• When change the stud on the exhaust manifold or use the bolt to tighten, the material of the stud and the
bolt must be SAE10B23H.
• Refer to SOS option manual for the installation pitch and etc. of exhaust manifold and catalyst parts.