2003/01/20 Caterpillar

Off-Highway Truck/Tractor:

776C (S/N: 2TK1-UP)

776D (S/N: 5ER1-UP; AFS1-UP)

777C (S/N: 4XJ1-UP)

777D (S/N: AGC1-UP; 3PR1-UP)

777D HAA (S/N: 2YW1-UP; AGY1-UP)

784C (S/N: 2PZ1-UP)

785 (S/N: 8GB1-UP)

785B (S/N: 6HK1-UP)

785C (S/N: 1HW1-UP; APX1-UP)

785C HAA (S/N: 5AZ1-UP)

789 (S/N: 9ZC1-UP)

789B (S/N: 7EK1-UP)

789C (S/N: 2BW1-UP)

793 (S/N: 3SJ1-UP)

793B (S/N: 1HL1-UP)

793C (S/N: 4AR1-UP; ATY1-UP; 4GZ1-UP)

793C XQ (S/N: CBR1-UP)

797 (S/N: 5YW1-UP)

797B (S/N: JSM1-UP)

Wheel Loader:

994 (S/N: 9YF1-UP)

994D (S/N: 3TZ1-UP)

Service Magazine SEPD0297, 18 March 1996, "Kits Availalble For Servicing 105-4324 Air Starting Motor Gp ". Replace the article with the following information.

Four new kits are available for servicing 105-4324 Air Starting Motor Gp. These kits include the most frequently needed parts for rebuilding this air starting motor.

Illustration 1 and Table 1 identify the components in 129-2253 Overhaul Kit. Illustration 1 and Table 2 identify the components in 129-2251 Seal Kit. Illustration 1 and Table 3 identify the components in 129-2252 Turbine Wheel Kit. Illustration 1 and Table 4 identify the components in 129-2254 Planetary Gear Kit .

Note: Some of the identified components are used in more than one kit.

Illustration 1	g00946122

Table 1

Components in 129-2253 Overhaul Kit
Item	Qty	Description
1	2	O-Ring
3	1	O-Ring
4	1	Bearing
5	3	Shaft
6	6	Spacer
7	3	Gear
8	3	Bearing Assembly
9	1	Seal
10	1	Ring
11	1	Bearing
12	1	O-Ring
13	1	O-Ring

Table 2

Components in 129-2251 Seal Kit
Item	Qty	Description
14	1	Bearing
15	1	Ring (Retainer)
16	1	O-Ring
17	1	O-Ring
18	1	O-Ring
19	1	O-Ring
20	1	O-Ring

Table 3

Components in 129-2252 Turbine Wheel Kit
Item	Qty	Description
	1	129-2253 Overhaul Kit
2	1	Motor

Table 4

Components in 129-2254 Planetary Gear Kit
Item	Qty	Description
5	3	Shaft
6	6	Spacer
7	3	Gear
8	3	Bearing Assembly
12	1	O-Ring