2014/11/27 Caterpillar

Wheel Loader:

950 GC (S/N: M5K1-UP)

950H (S/N: MXL1-UP; JLX1-UP)

962H (S/N: SSA1-UP; PCW1-UP)

966H (S/N: BJ61-UP; BS61-UP)

972H (S/N: NPE1-UP; WXZ1-UP)

Service Magazine SEDP1895, 27 11 2014, "New Anti - Drift Valve Logic Element Is Now Available for Certain Medium Wheel Loaders". Disregard this article. Refer to the information follows.

Description of Change: A new anti-drift valve logic element is now available for machines listed above. The new check valve group with piston and ball design is more robust which provides extended service life.

Table 1

New Part List
Item	Quantity	Part Number	Part Name
1	2	445-6109	Check Valve Gp

Illustration 1	g03764077

New 445-6109 Check Valve Gp (1) replaces the former 443-3773 Check Valve Gp and 356-8603 Check Valve Gp in the main control valve group.

Adaptable To: The new 445-6109 Check Valve Gp is now used on all the machines that are listed in the table below.

Table 2

New 445-6109 Check Valve Gp
Model	Old Control Valve Part No.	New Control Valve Part No.	Adaptable To	Effective With
950GC (Ride Control)	383-8642	451-5885	S/N:M5K1-242	S/N:M5K243-UP
950GC (No Ride Control)	383-8643	451-5886	S/N:M5K1-242	S/N:M5K243-UP
950/962 H (Ride Control)	364-0640	451-5878	S/N:JLX1-583 S/N:SSA1-329	S/N:JLX584-UP S/N:SSA330-UP
950/962 H (No Ride Control)	364-0641	451-5881	S/N:MXL1-1158 S/N:JLX1-585 S/N:PCW1-316	S/N:MXL1159-UP S/N:JLX586-UP S/N:PCW317-UP
950/962 H Logger (Ride Control)	373-4925	451-5876	S/N:MXL1 -1357 S/N:JLX1-561	S/N:MXL1358-UP S/N:JLX562-UP
966/972 H (Ride Control)	363-8114	453-0229	S/N:BJ61-1180 S/N:BS61-202 S/N:WXZ1-240 S/N:NPE1-201	S/N:BJ61181-UP S/N:BS6203-UP S/N:WXZ241-UP S/N:NPE202-UP
966/972 H (No Ride Control)	384-3946	451-5890	S/N:BJ61-869 S/N:BS61-203 S/N:WXZ1-226 S/N:NPE1-201	S/N:BJ6870-UP S/N:BS6204-UP S/N:WXZ227-UP S/N:NPE202-UP
966/972 H Logger Ride Control	370-7350	453-0228	S/N:BJ61-1108 S/N:BS61-UP	S/N:BJ61109-UP S/N:BS61-UP