Caterpillar Performance Handbook, January 2017, SEBD0351-47

Rear Ripper and Rear Ripper Scarifier

Motor Graders

MOTOR GRADER/RIPPER Parallelogram — Rear Mounted

18M3 Ripper 23.5-25

24M Ripper 29.5-29

Tire Size (Std.)

Front and Rear

12PR (G-2)

28PR

Ripper Shank Maximum Digging Depth

452 mm 1500 mm

490 mm 1165 mm

17.8" 4'11"

1'7.3" 3'9.9"

Maximum Reach at Ground Line

Maximum Ground Clearance under Tip (shank pinned in bottom hole) Maximum Ramp Angle, Ripper Up, Shanks inWorking Position (shank pinned in bottom hole)

673 mm

739 mm

2'2.5"

2'5.1"

14.3°

12.5°

Shank Section

76 × 178 mm

76 × 178 mm

3" × 7"

3" × 7"

Ripper Beam Overall Width

2.98 m 214 mm 254 mm

3.91 m

9'9" 8.4"

12'10"

Height Length

216 mm 254 mm

8.5"

10"

10"

Number of Pockets

7

7

Pocket Spacing: Inside

500 mm 445 mm 445 mm

593 mm 604 mm 604 mm

1'8"

1'11.4" 1'11.8" 1'11.8"

Middle Outside

17.5" 17.5"

InstalledWeights: Ripper with Standard Shank

2198 kg

2812 kg

4836 lb 150 lb

6186 lb 150 lb

Each Additional Shank

68 kg

68 kg

Ripper Forces:

Penetration Force

13 749 kg 19 822 kg

13 601 kg 18 621 kg

30,311 lb 43,700 lb

29,985 lb 41,052 lb

Pryout Force

11-26 Edition 47