320C and 322C Excavators Attachment Hydraulic System – Check Valve (Boom Drift Reduction)



Illustration 1 g00757913

(1) 5I-8511 Spring

Free length … 61.4 mm (2.42 inch)
Outside diameter … 13.2 mm (0.52 inch)

(2) Connector

Torque for Connector … 48.0 ± 5.0 N·m (35.0 ± 4.0 lb ft)

(3) Plug

Torque for plug … 50.0 ± 7 N·m (36.9 ± 5.0 lb ft)

(4) Plug

Torque for plug … 5.0 ± 1.5 N·m (44.0 ± 13.0 lb in)

(5) Straight Thread Plug

Torque for plug … 48.0 ± 5.0 N·m (35.4 ± 3.7 lb ft)

(6) Line Relief Valve

Pressure setting … 36800 ± 1470 kPa (5337 ± 213 psi)
Torque for valve … 95.0 ± 14.0 N·m (70.0 ± 10.0 lb ft)

(7) 087-5166 Spring

Free length … 70.0 mm (2.76 inch)
Outside diameter … 21.8 mm (0.86 inch)