© Apr 2022 2-10 TB18 Plus&20J Plus Maintenance Manual
SPECIFICATIONS
ITEM SPECIFICATION
Extremely cold region
(<-30℃ [-22℉])
Special program to be determined
Hydraulic Pump
Type Closed type variable displacement pump
Displacement (rated rpm=2200r/min)
100 L/min
Max drive pressure 28 MPa (4061 Psi)
Drive motor
Type Plunger motor
Displacement
38 cc/r
Function Manifold
Drive variable pump pressure 28 MPa (4061 Psi)
Boom function valve pressure 21 MPa (3046 Psi)
Compensator oil pressure 1.95 MPa (283 Psi)
Brake engage pressure 3.5 MPa (508 Psi)
Return Filter
Return filter bypass pressure 0.17 MPa (25 Psi)
High-pressure Filter
High-pressure filter bypass pressure 0.35 MPa (51 Psi)
NOTICE
The factory-filled hydraulic oil can be selected to suit the customer’s demand. Do not intermix different types of
hydraulic oil.
HYDRAULIC HOSE AND
FITTING SPECIFICATIONS
HYDRAULIC HOSE TORQUE
Hydraulic hoses must be torqued to the following specifications.
Table 2-10 Hydraulic Hose Torque
METRIC THREAD
L (LIGHT-DUTY) S (HEAVY-DUTY)
M12 × 1.5
19 ± 1 Nm (14 ± 1 ft-lb)
M14 × 1.5
26 ± 2 Nm (19 ± 2 ft-lb)
M16 × 1.5
40 ± 3 Nm (30 ± 2 ft-lb)
M18 × 1.5
50 ± 4 Nm (37 ± 3 ft-lb)