CYLINDER GP-BOOM 2042823 - Caterpillar

Illustration 1 g00983864
Typical example
(1) Plug
(2) Spring housing
(3) Shim
(4) Shim
Table 1
Specifications for the Control Valve
Sales Model Plug (1) Plug Torque Spring Housing (2) Torque for Housing Shim (3) Thickness of Shim Shim (4) Thickness of Shim
H45, H45s 3Q-7348 150 N m (110 lb ft) 3Q-7345 150 N m (110 lb ft) 3Q-7344 1 mm (0.04 inch) 3Q-7343 0.5 mm (0.02 inch)
H50, H50s 3Q-7715 220 N m (162 lb ft) 3Q-7315 340 N m (251 lb ft) 3Q-7316 1 mm (0.04 inch) 3Q-7317 0.5 mm (0.02 inch)
63, H63, H63s 3Q-7348 150 N m (110 lb ft) 3Q-7345 150 N m (110 lb ft) 3Q-7344 1 mm (0.04 inch) 3Q-7343 0.5 mm (0.02 inch)
70, 70s, H70, H70s 3Q-7348 150 N m (110 lb ft) 3Q-7315 340 N m (251 lb ft) 3Q-7316 1 mm (0.04 inch) 3Q-7317 0.5 mm (0.02 inch)
H90C, H90Cs 3Q-7348 150 N m (110 lb ft) 3Q-7315 340 N m (251 lb ft) 3Q-7316 1 mm (0.04 inch) 3Q-7317 0.5 mm (0.02 inch)
100, 100s, H100, H100s 3Q-7715 220 N m (162 lb ft) 3Q-7315 340 N m (251 lb ft) 3Q-7316 1 mm (0.04 inch) 3Q-7317 0.5 mm (0.02 inch) Note: For H45, H45s, H50, H50s, 70, 70s, H70, and H70s hammers, adding 1 mm (0.04 inch) shims increases low pressure by 300 kPa (44 psi). This also increases the operating pressure by 800 kPa (116 psi).Note: For 63, H63, and H63s hammers, adding 1 mm (0.04 inch) shims increases low pressure by 300 kPa (44 psi). This also increases the operating pressure by 1000 kPa (145 psi).Note: For 100, 100s, H100, and H100s hammers, adding 1 mm (0.04 inch) shims increases low pressure by 300 kPa (44 psi). This also increases the operating pressure by 1300 kPa (189 psi).
Illustration 2 g00683619
(A) Shim Thickness
Table 2
Recommended Shim Thickness for Control Valve
Sales Model Shim Thickness (A)
H45, H45s 3.5 mm (0.14 inch)
H50, H50s 3.5 mm (0.14 inch)
63, H63, H63s 2.0 mm (0.08 inch)
70, 70s, H70, H70s(1) 1.5 mm (0.059 inch)(2)
70, 70s, H70, H70s(3) 4.0 mm (0.16 inch)
H90C, H90Cs 1.5 mm (0.06 inch)
to
2.0 mm (0.08 inch)
100, 100s, H100, H100s 2.0 mm (0.08 inch)
(1) Use the shim thickness for the following range: 4KL1-752 and ; 4KL1000-1032
(2) If a new spool is installed, you must use the shim thickness for 4KL1033Up.
(3) Use the shim thickness for the following range: 4KL753-999 and ; 4KL1033-UpNote: The shim thickness is the recommended specification for setting the control valve. This must be checked by measuring the pressure in the low pressure circuit as you operate the hammer. Refer to the Testing and Adjusting section of the Service Manual, "Control Valve (Operating Pressure) - Test and Adjust".