NAVISTAR CEMS BT-22-2009 Power Take-Off Clutch Flywheel Test.pdf
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1、 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2009 by Navistar, Inc. AUGUST 2009 Page 1 of 2 NAVISTAR, INC. CEMS (CORPORATE ENGINEERING MATERIAL SPECI
2、FICATION) NUMBER: CEMS BT-22 TITLE: Power Take-Off Clutch Flywheel Test CURRENT ISSUE DATE: August 2009 WRITTEN/REVIEWED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES ISSUE OF: October 2001 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specifica
3、tion may involve hazardous materials, equipment, and procedures. This specification does not purport to address all of the safety issues associated with its use. The user is responsible to consult appropriate safety and health practices and to determine the applicability of regulatory limits prior t
4、o use. Change Notice: Replaced “International Truck and Engine Corporation” with “Navistar, Inc.” per corporate directive. 1.0 SCOPE This method covers a test procedure to screen combination hydraulic and transmission fluids for use in wet, multiple disc power take-off clutches. FOR CLUTCHES EQUIPPE
5、D WITH SINTERED BRONZE LINING MATERIAL 2.0 APPARATUS 2.1 Production, wet, six disc clutch type independent power take-off unit (International part number 373707R94). 2.2 Flywheel with a moment of inertia of 13.2 slugft2 (17.9 kgm2). 2.3 Adapter (International part number 360742R2). 3.0 MATERIAL 3.1
6、New sintered bronze linings (International part number 376825R91). 3.2 New steel inner discs (International part number 374033R1). 4.0 PROCEDURE 4.1 Drill and tap two holes in the adapter, 15 to 30 above and below the centerline, for cooling water inlet and outlet. Install a baffle at the centerline
7、 to prevent short circuiting of the cooling water. 4.2 Install the adapter on IPTO unit and connect cooling water. 4.3 Install 2 quarts (1.9 litres) of test fluid in the IPTO unit. 4.4 Adjust the clutch lining pressure to obtain an initial dynamic clutch capacity of 550 lb-ft (746 N-m). 4.5 Maintain
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