2011/03/29 Caterpillar

Asphalt Paver:

AP-1055D (S/N: FAC1-UP)

Excavator:

322C (S/N: EMR1-UP)

324D (S/N: EJC1-UP; T2D1-UP; SYM1-UP)

325C (S/N: BMM1-UP)

325D (S/N: GPB1-UP; PKE1-UP; A3R1-UP; SCR1-UP)

329D (S/N: XDB1-UP; SCY1-UP)

330C (S/N: KDD1-UP)

330D (S/N: GGE1-UP; B6H1-UP; ERN1-UP; MWP1-UP; RAS1-UP)

336D (S/N: KDJ1-UP; W3K1-UP)

M325D (S/N: EDF1-UP)

Integrated Toolcarrier:

IT38GSeries II (S/N: JAN1-UP)

Motor Grader:

12H (S/N: CBK1-UP)

140M (S/N: B9D1-UP; D9G1-UP; B9M1-UP)

Track-Type Loader:

973C (S/N: LDX1-UP)

Track-Type Tractor:

D6RSeries II (S/N: CAD1-UP; AEM1-UP; AAX1-UP; BMY1-UP)

D6RSeries III (S/N: DMK1-UP)

D6T (S/N: JWD1-UP; LAE1-UP; DJG1-UP; WCG1-UP; WFH1-UP; LKJ1-UP; KJL1-UP; LAY1-UP)

Wheel Loader:

938GSeries II (S/N: PHN1-UP)

950H (S/N: M1G1-UP; J5J1-UP)

Wheel Tractor-Scraper:

627G (S/N: CEX1-UP)

Service Magazine, SEPD1256, 22 March 2011, "A New Hose Clamp Is Now used on Certain Machine Engines ". Disregard this article. Refer to the article that follows.

Description of Change: A new hose clamp is now used on the engines of the machines that are listed above. The new improved hose clamp seals the juncture between the coolant hose to the water pump more securely than the previous hose clamp.

Adaptable To: In the field, if the leaks are found at the juncture of the coolant hose and the water pump, use the new 347-3148 Band Clamp to replace the 237-5176 Band Clamp.

The new hose clamp is adaptable back to the first production of the engines in the machines that are listed above.

Table 1

Model	Effective Serial Number Prefix
12H	S/N:CBK01777-UP
140M	S/N:B9D03224-UP
140M	S/N:B9M01079-UP
140M	S/N:D9G01175-UP
322C	S/N:EMR00570-UP
324D L	S/N:SYM00806-UP
324D L	S/N:T2D00702-UP
324D LN	S/N:EJC00937-UP
325C	S/N:BMM00953-UP
325D	S/N:GPB01121-UP
325D	S/N:PKE01204-UP
325D	S/N:SCR01082-UP
325D L	S/N:A3R01437-UP
329D L	S/N:XDB00298-UP
329D LN	S/N:SCY00299-UP
330C	S/N:KDD01705-UP
330D	S/N:ERN00416-UP
330D	S/N:GGE00905-UP
330D	S/N:RAS01315-UP
330D L	S/N:B6H00655-UP
330D L	S/N:MWP03386-UP
336D L	S/N:KDJ00394-UP
336D L	S/N:W3K01643-UP
627G	S/N:CEX00603-UP
938G II	S/N:PHN03587-UP
950H	S/N:J5J01708-UP
950H	S/N:M1G02316-UP
973C	S/N:LDX00508-UP
AP-1055D	S/N:FAC99710-UP
D5N XL	S/N:AGG02855-UP
D5N XL	S/N:CFH00464-UP
D6R II	S/N:AEM00139-UP
D6R II	S/N:CAD00284-UP
D6R II XL	S/N:AAX01569-UP
D6R II XL	S/N:BMY00546-UP
D6R III LGP	S/N:DMK00508-UP
D6T LGP	S/N:KJL01295-UP
D6T LGP	S/N:LKJ00528-UP
D6T P LGP	S/N:JWD00274-UP
D6T P LGP	S/N:WCG00630-UP
D6T P XL	S/N:WFH00552-UP
D6T P XW	S/N:DJG00536-UP
D6T XL	S/N:LAE00432-UP
D6T XL	S/N:LAY01668-UP
IT38G	S/N:JAN00521-UP
M325D MH	S/N:EDF02007-UP

The change is effective at the factory with the machine serial numbers that are listed in Table1.