Maintenance - Manitowoc Grove RT770E Service Maintenance Manual

HYDRAULIC SYSTEM

Maintenance

Removal
1. Tag and disconnect the hydraulic lines to the solenoid
valves; cap all lines and openings.
2. Tag and disconnect the electrical connectors.
3. Remove the capscrews, hex nuts and washers securing
the manifold to the outrigger box; remove the manifold.
Inspection
Visually inspect the valves and hydraulic connections for any
evidence of leaks or other damage. Check security of the
electrical connections. Inspect the wiring for any evidence of
cracks or breaks.
2-50
Installation
1.
2.
3.
Functional Check
Activate the hydraulic system and cycle the affected
cylinder(s) several times. Observe for proper functioning of
the affected cylinder(s). Ensure the solenoid valve hydraulic
connections are secure.
Published 11/26/2014, Control # 447-05
Position the manifold on the outrigger box and secure
with the washers, hex nuts, and capscrews. Torque
capscrews; refer to Fasteners and Torque Values, page
1-16 for proper torque value.
Connect the electrical connectors to the solenoids as
marked during removal.
Connect the hydraulic lines to the valves as marked
during removal.
RT770E