2-61
TMS800E SERVICE MANUAL HYDRAULIC SYSTEM
Published 01-29-2014, Control # 496-00
1. If removed, install the holding valve. Refer to HOLDING
VALVES in this section.
2. Install the O-ring and backup rings on the outside of the
seal retainer and the deep Z rod seals and wear rings in
the inside of the seal retainer (see Figure 2-41).
3. Slide the seal retainer onto the inner rod.
4. Install the guide lock ring onto the inner rod and slide the
inner rod and seal retainer into the outer rod.
5. Install the wiper ring into the inside of the retaining ring.
6. Install the backup ring, deep Z rod seal, buffer seal
assembly, and wear rings into the inside of the cylinder
head (Figure 2-42).
7. Slide the spacer, head and retaining ring onto the outer
rod.
8. Install the O-rings and backup rings in the inside of the
piston.
NOTE: Use a new setscrew.
9. Screw the piston onto the outer rod and secure with a
new setscrew.
10. Install the guide lock rings and hydrolock seal
assemblies on the outside of the piston (Figure 2-43).
11. Install the wear ring on the outside of the spacer.
12. Install the O-ring and backup ring on the outside of the
cylinder head.
13. Install the backup ring and O-ring on the outside of the
inner rod end.
14. Clean all oil from the threads of the cylinder head and
apply Loctite #290 to the threads.
15. Slide the rod assembly into the cylinder barrel and screw
the cylinder head into the barrel.
16. Coat the threads of the bolts with Loctite #290. Install the
rod end plate and bolt the plate to the inner rod end with
the bolts and washer. Torque the bolts refer to Fasteners
and Torque Values, page 1-13.
17. Bolt the rod retaining plate to the cylinder barrel with the
three 7/16 in bolts and washers. Torque the bolts refer to
Fasteners and Torque Values, page 1-13.
18. Pressurize and cycle the cylinder with hydraulic oil
pressure. Test the cylinder at 310.1 bar (4500 psi).
Check for proper operation and any leakage. Make
repairs as needed.
CAUTION
Improper seal installation can cause faulty cylinder
operation.
CAUTION
Do not scratch the grooved and gland surfaces or
damage the seals and O-rings.
Backup Rings
Wear Ring
O-Ring
Deep Z
Seals
Wear Ring
FIGURE 2-41
Wiper Ring
Deep Z Seal
Buffer Seal
Retaining Ring
FIGURE 2-42
Backup Ring
Wear Ring
6488-1
CAUTION
Do not use air pressure to cycle the cylinder. Use only
controlled hydraulic pressure.
Hydrolock Piston Seals
Guide Lock Ring
FIGURE 2-43
Reference Only
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