Filter Maintenance - Manitowoc Grove RT9130E-2 Service And Maintenance Manual

HYDRAULIC SYSTEM

Filter Maintenance

Filter Element Removal
Ensure that all hydraulic systems are shut down and the
pressure is relieved.
1. Shut down all hydraulic systems.
2. Wipe any dirt from the filter head and cap Figure 2-4.
3. Remove the capscrews
disconnect the return manifold tube from the filter.
Discard O-ring.
4. Unbolt and remove the filter assembly from the
reservoir. Discard the gasket. If necessary, the filter can
be disassembled without removing the entire filter from
the reservoir.
5. Remove the four bolts securing the cap to the filter head.
Remove the cap and spring. Take care when removing
the spring as it may be under pressure. Discard O-ring.
6. Unscrew the filter gauge from the filter head.
7. Remove the filter head and discard the O-ring.
8. Remove the bypass valve from the filter tube on the filter
bowl.
9. Remove the filter element.
10. Ensure the new filter element is correct by comparing
their part numbers with the part numbers of the used
filter element.
2-12
WARNING
and lockwashers
Published 11-22-2016, Control # 345-12
11. Discard the used filter element.
12. If not done earlier, unbolt the filter bowl from the
reservoir. Remove the filter bowl. Discard gasket.
Filter Element Installation
1. Inspect all parts; replace any defective part.
2. As required, install a new gasket around the filter bowl,
then secure the filter bowl to the hydraulic reservoir with
four capscrews and lockwashers. Assemble the filter
and install it in the reservoir later.
3. Install the new element around the filter tube inside the
and filter bowl.
4. Install the bypass valve in the filter tube of the filter bowl.
5. Install a new O-ring in the groove of the head. Install the
head on the filter bowl.
6. Install a new O-ring in its groove on the cap.
7. Place the spring inside the circular spring guide on the
top of the bypass valve.
8. Secure the cap to the filter head with four capscrews and
washers.
9. Screw the gauge into the filter head.
10. If not done earlier, install a new gasket around the filter
bowl. Secure the filter to the hydraulic reservoir with four
capscrews and lockwashers.
11. Install a new O-ring in its groove on the return manifold
tube. Secure the return manifold tube to the filter head
with four capscrews and lockwashers.
12. Activate the hydraulic system and check for leaks. Make
repairs as needed.
RT9130E-2 SERVICE MANUAL