Grove Published 01-29-2015, Control # 512-01 2-73
TMS700E SERVICE MANUAL HYDRAULIC SYSTEM
6. Thoroughly rinse parts, allow to drain, and wipe with a
lint-free rag. Inspect all parts for serviceability.
7. Flush the barrel and fluid tube. Drain and wipe dry with a
lint-free cloth. Compressed air may be used to blow out
barrel port.
8. Inspect the bore of barrel for nicks, gouges or scratches.
Replace barrel assembly if any of these conditions exist.
Assembly
NOTE: Lubricate seals and rings with clean hydraulic oil.
For head and piston seal installation, (Figure 2-56)
and (Figure 2-57).
1. Using round nose pliers or special installation tools, twist
the dual lip u-cup seal into a “C” shape and allow it to
snap into groove.
2. Use a similar technique to install the wiper.
3. Install the static O-ring and backup ring into the static
seal groove verifying that the backup ring is closest to
the threads.
4. Install the sealing O-ring into the groove between the
threads and the flange lip.
NOTE: If possible, the head/seal assembly should sit for at
least one hour to allow the seals to elastically
restore.
5. For easiest installation of the piston seal assembly,
warm the teflon outer ring in 49° to 66°C (120° to 150°F)
hydraulic oil or water. Lubricate the piston and all
components with hydraulic fluid.
6. Stretch the inner ring into the seal groove. Do not use
sharp edged tools and verify that it is not twisted.
7. Repeat step 6 for the outer ring.
8. Install the wear rings into wear ring grooves.
CAUTION
Before installing new seals and rings, clean all surfaces
and carefully remove burrs and nicks. Parts displaying
excessive wear or damage should be replaced.
CAUTION
When installing new seals and rings, avoid stretching
seals or scratching the grooved or gland surfaces. Make
sure parts are clean before and during assembly. Make
sure seals and rings are installed in the proper order.
FIGURE 2-56
Item Description
1 Sealing O-ring
2 Static O-ring
3 Static Backup Ring
4 Wear Rings
5 Rod Seal
6 Wiper
1
2
3
4
5
6
6391-1
FIGURE 2-57
Item Description
1 Sealing O-rings
2 Piston Seal
3 Wear Ring
1
2
3
3
6391-2
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