Page No. 27
Kubota Emission-Related Installation Instructions
Document Number : KEA-STD-03-CRS-DOC-001-
④
Appendix 5
2-4 Intake System Flexibility Options
See below for installation notes and limitations for option #2.
Option #2: Extend the air cleaner position as illustrated below except for the limitations outlined in the following pages.
The extension pipe must be OEM procured and it must comply with the below requirements:
A. The OEM must use the rubber coupling which is supplied by Kubota.
B. The rubber coupling must fit tightly on the air cleaner and extension pipe in order to avoid dust in the intake system.
C. The OEM must install a hose clamp on each end of the rubber coupling to avoid dust in the intake system.
D. No gap is allowed between the extension pipe and air cleaner outlet. (See image below)
E. “Flexibility” engines include an air cleaner with a rotatable outlet. There is possibility that the air cleaner outlet could rotate due to the extension
pipe weight, vibration, etc. It is the responsibility of the OEM to evaluate if the air cleaner extension pipe requires support. The OEM must be
able to guarantee that the extension pipe installation angle follows the design intent angle throughout the life of the machine.
F. See the next page for detailed extension pipe requirements and dimensions.
2. Intake System
2-4-4. Air Intake System Flexibility Option #2
RUBBER COULPING
< 500 mm
NO GAP
RUBBER COUPLING
EXTENSION PIPE
