2004/10/25 Caterpillar

Landfill Compactor:

826G Series II (S/N: AYH1-UP)

826G (S/N: 7LN1-UP)

836 (S/N: 7FR1-UP)

836G (S/N: BRL1-UP; 7MZ1-UP)

Soil Compactor:

825G Series II (S/N: AXB1-UP)

825G (S/N: 6RN1-UP)

Wheel Dozer:

824G Series II (S/N: AWW1-UP)

824G (S/N: 4SN1-UP)

834B (S/N: 7BR1-UP)

834G (S/N: BPC1-UP; 6GZ1-UP)

Wheel Loader:

980G Series II (S/N: AXG1-UP; AWH1-UP; AYT1-UP)

980G (S/N: 9CM1-UP; 2KR1-UP; 2SR1-UP)

988F Series II (S/N: 2ZR1-UP)

988F (S/N: 8YG1-UP)

988G (S/N: BNH1-UP; 2TW1-UP)

Specifications, SENR1333, "Service Brakes". This module is part of Service Manual, SENR1325.Specifications, RENR6033, "Service Brakes". This module is part of Service Manual, RENR6020.Specifications, RENR6013, "Service Brakes". This module is part of Service Manual, RENR6000.Specifications, SENR5880, "Service Brakes". This module is part of Service Manual, SENR5870.Specifications, SENR2611, "Service Brakes". This module is part of Service Manual, SENR1350.Specifications, RENR2187, "Service Brakes". This module is part of Service Manual, RENR2175.Specifications, SENR5732, "Service Brakes". This module is part of Service Manual, SENR5720.Specifications, SENR5732, "Service Brakes". This module is part of Service Manual, SENR1355.Specifications, RENR2197, "Service Brakes". This module is part of Service Manual, RENR3086.

A portion of the existing information is incorrect. The correct information follows.

108-0067 Service Brake Gp

Illustration 1	g01114205
The108-0067 Service Brake Gp is used on the following machines: 824G, 825G, 826G and 980G.

(1) 118-6606 Inner Plate

Thickness of new inner plate ... 6.35 ± 0.13 mm (0.250 ± 0.005 inch)

Minimum thickness of worn plate ... 6.22 mm (0.245 inch)

(2) 105-8750 Friction Disc

Thickness of new friction disc ... 7.10 ± 0.13 mm (0.280 ± 0.005 inch)

Minimum thickness of worn disc ... 5.64 mm (0.222 inch)

Minimum groove depth ... 0.32 mm (0.013 inch)

(3) Brake Disc Pack

Thickness of the four new inner plates and the three new friction discs ... 46.70 ± 0.91 mm (1.839 ± 0.036 inch)

Minimum worn thickness ... 41.8 mm (1.65 inch)

208-5972 Service Brake Gp, 208-5974 Service Brake Gp, and 195-8773 Service Brake Gp

Illustration 2	g01114576
The 208-5972 Service Brake Gp, 208-5974 Service Brake Gp and 195-8773 Service Brake Gp are available for the following machines: 824G Series II, 825G Series II, 826G Series II and 980G Series II.

Note: The 208-5972 Service Brake Gp, 208-5974 Service Brake Gp and 195-8773 Service Brake Gp includes one damper plate, three inner plates, three friction discs, and one outer plate.

(4) 167-1261 Damper Plate

Outside diameter ... 327.5 ± 0.5 mm (12.89 ± 0.02 inch)

Thickness of new damper plate ... 10.83 ± 0.13 mm (0.426 ± 0.005 inch)

Note: Replace the damper plate if the thickness is less than or equal to 9.86 mm (0.388 inch).

(5) 118-6606 Inner Plate

Thickness of new inner plate ... 6.35 ± 0.13 mm (0.250 ± 0.005 inch)

Minimum thickness of worn inner plate ... 6.22 mm (0.245 inch)

(6) 195-3722 Outer Plate

Thickness of new outer plate ... 3.18 ± 0.13 mm (0.125 ± 0.005 inch)

Minimum thickness of worn outer plate ... 3.05 mm (0.120 inch)

(7) 105-8750 Friction Disc

Thickness of new friction disc ... 7.10 ± 0.13 mm (0.280 ± 0.005 inch)

Minimum thickness of the worn friction disc ... 5.64 mm (0.222 inch)

Minimum groove depth ... 0.32 mm (0.013 inch)

(8) Brake Disc Pack

The thickness of three new inner plates, three new friction discs and one outer plate without damper plate ... 43.53 ± 0.91 mm (1.714 ± 0.036 inch)

Minimum worn thickness without damper plate ... 38.63 mm (1.521 inch)

115-9756 Service Brake Gp and 161-9275 Service Brake Gp

Illustration 3	g01114579
The 115-9756 Service Brake Gp or the 161-9275 Service Brake Gp is used on the following machines: 834B, 834G, 836, 836G, 988F, 988F Series II and 988G.

(9) 118-6606 Inner Plate

Thickness of new inner plate ... 6.35 ± 0.13 mm (0.250 ± 0.005 inch)

Minimum thickness of worn plate ... 6.22 mm (0.245 inch)

(10) 105-8750 Friction Disc

Thickness of new friction disc ... 7.10 ± 0.13 mm (0.280 ± 0.005 inch)

Minimum thickness of worn disc ... 5.64 mm (0.222 inch)

Minimum groove depth ... 0.32 mm (0.013 inch)

(11) Brake Disc Pack

Thickness of five new inner plates and four new friction discs ... 60.15 ± 1.17 mm (2.368 ± 0.046 inch)

Minimum worn thickness ... 53.66 mm (2.113 inch)

Illustration 4	g00478267
Measuring the Depth of the Grooves on the Service Brake Disc

Note: In order to check a friction disc for wear, measure the disc thickness and measure the groove depth in the friction material. For reusability, the thickness of the friction disc must be at least 5.64 mm (0.222 inch). The minimum groove depth in a friction disc must be at least 0.32 mm (0.013 inch).

Reference: For additional information on measuring the thickness of a disc and groove, refer to the Service Manual module for Testing and Adjusting, "Service Brake Discs - Check" for the machine that is being serviced.