Komatsu 830E Shop Manual page 448

6. After shell has been cleaned with a cleansing
agent, check the inside and outside of shell.
Special attention should be given to the area
where the gas valve and hydraulic assembly
pass through the shell. Any nicks or damages
in this area could destroy the accumulator blad-
der or damage new seals. If this area is pitted
consult your Komatsu Service Manager.
Repair of the housing by welding, machining or
plating to salvage a
APPROVED. These procedures may weaken the
housing and result in serious injury to personnel
when pressurized.
1. Bladder Assembly
2. Hydraulic Port Assembly
3. Anti Extrusion Ring
4. Shell
5. Nut
6. O-Ring Back-Up (Metal)
L5-4
worn area is NOT
FIGURE 5-5. ACCUMULATOR ASSEMBLY
7. O-Ring
8. O-Ring Back-Up
9. Spacer
10. Locking Ring
11. Valve Assembly
Steering Component Repair
Assembly
Assemble the accumulator in a dust and lint free
area. Maintain complete cleanliness during
assembly to prevent possible contamination.
1. After shell (4, Figure 5-5) has been cleaned and
inspected, place accumulator shell in vise or on
table.
2. Thoroughly coat the inside of the accumulator
shell with a liberal amount of clean hydraulic oil
to lubricate and cushion the bladder. Make sure
the entire internal of the shell is lubricated.
3. With all gas completely exhausted from bladder,
collapse bladder and fold longitudinally in a
compact roll.
4. Insert the bladder pull rod into the valve stem
opening and out through the shell fluid port.
Attach the bladder pull rod to the bladder valve
stem.
5. With one hand, pull the bladder pull rod while
feeding the bladder into the shell with the other
hand. Slight twisting of bladder will assist in this
insertion.
6. Once the bladder valve stem has been pulled
through the valve stem opening in the shell,
install the valve stem nut (5) by hand. Once the
valve stem nut is in place, remove the bladder
pull rod.
12. Bleed plug
13. Warning Plate
14. Gas Valve Manifold
15. Pressure Switch
16. O-Ring
L05026