MTS Systems 111 Series, Информация о продукте

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Series 111 Accumulators Maintenance 19
Replacing the Accumulator Seal
Special equipment
The following equipment is required to replace any Series 111 Accumulator
seals:
• A seal kit (MTS part number 041-463-501 for the Model 111.11B or
MTS part number 041-463-301 for the Model 111.12C)
• Accumulator charging kit (MTS part number 376986-01)
Procedure
Use the following procedure to replace any Series 111 Accumulator seals:
1. Remove the accumulator as described in “Removing the Accumulator”
on page 18.
2. Remove the accumulator valve protective cover and the valve stem
cap. Securely position the accumulator with the gas valve down.
3. Place a suitable container under the valve stem to capture any
expelled fluid. Use an open-end wrench and open the locknut on the
accumulator valve assembly two or three full turns. Allow gas
pressure to reduce to zero and any hydraulic fluid to be expelled.
4. Use an open-end wrench and remove the accumulator valve assembly
from the end cap. To remove the end cap, hold the accumulator body
with a strap wrench, insert the spanner wrench pins into the screw
holes in the end cap, and rotate the wrench counterclockwise.
5. Insert an aluminum or wooden rod into the hydraulic fluid port
opening (you may have to remove the boss adapter fitting from the
hydraulic fluid port of Model 111.11B Accumulators) until it contacts
the piston. Push the piston out of the cylinder.
Accumulator Seal Details
Screws
C
A
Hydraulic Fluid
End Cap
Hydraulic
Fluid Port
Locking Pin
Accumulator
Valve Assembly
Accumulator Valve
Protective
Cover
Valve Stem Cap
Locknut End Cap Chamfer Piston
Seal
Backup
Ring
Backup
Ring
Piston Seals
B
Piston Wear
Strip
Detail A Detail B Detail C
Seal