General
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| Illustration 1 | g03235159 |
(1) Piston (2) Cylinder (3) Upper tool bushing (4) Pins (5) Screw (6) Accumulator (7) Control valve (8) Carrier seal (9) Plug (10) Pins (11) Front head (12) Tie rod (13) Tie rod nut (14) Lower tool bushing | |
Recommended operating pressure ... 14000 kPa to 16000 kPa (2031 psi to 2320 psi)
Note: The operating pressure of the hammer will vary with the amount of back pressure, input flow, and the hardness of the material. The operating pressure of the hammer will be lower during operation against a harder material such as a steel plate. The operating pressure of the hammer will be higher during operation against a softer material such as rock or concrete.
Assembly Notes
| Assemble the hammer by using the appropriate lifting eyes | |||
|---|---|---|---|
| Item | Component | Lifting eye | Qty |
| (3) | Upper tool bushing | "M12 x 1.75" | 2 |
| (11) | Front head | "M16 x 2" | 2 |
| (12) | Tie rod | "M12 x 1.75" | 1 |
| (7) | Control valve | "M16 x 2" | 2 |
| (8) | Carrier | "M16 x 2" | 2 |
| (1) | Piston | "M16 x 2" | 1 |
| (2) | Cylinder | "M16 x 2" | 2 |
| (6) | Accumulator | "M16 x 2" | 3 |
Apply 4C-5598 Anti-Seize Compound to the following components.
- Coat the outside surfaces of the tool bushings (3) and (14) .
- Coat the contact surface of the upper tool bushing (3) .
- Coat the outside surfaces of the cylinder (2) that contact the front head (11) .
- Coat the threads of all bolts.
- Coat the bores of the front head (11) .
- Coat the bores for the tie rods (12) on the valve group (7) .
(10) Apply 155-0695 Thread Lock Compound to the threads of the plugs.
Wear
Upper Tool Bushing
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| Illustration 2 | g03235280 |
Section view of upper tool bushing (3) | |
| Specifications for Upper Tool Bushing (3) | ||
| A | Degree of Angle (A) | 45 degrees |
| B | New Dimension (B) | 26.8 mm (1.06 inch) |
| Minimum Dimension (B) | 24.8 mm (0.98 inch) |
|
| C | Diameter (C) | 82 mm (3.23 inch) |
| D | New Dimension (D) | 100.5 mm (3.96 inch) |
| Maximum Dimension (D) | 102 mm (4.02 inch) |
|
Note: If the minimum dimension (B) is not met, replace the upper tool bushing.
Note: If maximum diameter (D) is exceeded, replace the upper tool bushing.