Usage:
(1) 2U265 Spring for valve spool:
Length under test force ... 38.10 mm (1.5 in.)
Test force ... 333.6 N (75 lb.)
Free length after test ... 116.84 mm (4.6 in.)
Outside diameter ... 50.55 mm (1.99 in.)
(2) 2U256 Spring for pilot valve:
Length under test force ... 28.56 mm (1.12 in.)
Test force ... 302.5 N (68 lb.)
Free length after test ... 32.28 mm (1.27 in.)
Outside diameter ... 9.70 mm (0.382 in.)
(3) 2U269 Spring for poppet valve:
Length under test force ... 33.27 mm (1.31 in.)
Test force ... 200.2 N (45 lb.)
Free length after test ... 45.974 mm (1.81 in.)
Outside diameter ... 11.58 mm (0.456 in.)
(4) Spring for check valve:
Length under test force ... 50.80 mm (2.0 in.)
Test force ... 17.792 N (4 lb.)
Free length after test ... 66.675 mm (2.63 in.)
Outside diameter ... 15.14 mm (0.596 in.)
Pressure settings for relief valve:
Hoist ... 19.0 ± 0.35 MPa (2750 ± 50 psi)
Down ... 6.9 ± 0.35 MPa (1000 ± 50 psi)
Hoist times:
D250B & D300B
D25C, D30C, D35C & D35HP
D350C & D400