Komatsu 830E Shop Manual page 322

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FIGURE 3-2. NITROGEN CHARGING VALVE
1. Valve Cap
2. Seal
3. Valve Core
4. Swivel Nut
5. Rubber Washer
NOTE: The mounting arrangement for the top and
bottom pins is identical.
8. Remove locknuts (3, Figure 3-3) and capscrews
(2) at upper and lower pins (1) just on the sus-
pension cylinder to be removed.
9. Install pin removal tool (1, Figure 3-4) to each
lower pin using the capscrews listed in Table 1.
Tighten the capscrews to 177 ± 17 ft.lbs (240 ±
24 Nm) torque.
®
The rear HYDRAIR II suspension weighs approx-
imately 2,400 pounds (1088 kg.). Be certain the
capacity of the lifting device used is sufficient for
lifting this load.
10. Position a fork lift (or other suitable lifting device)
under the suspension to be removed and
secure it to the lifting device.
11. Attach both shackles (2) to cylinder (3).
12. Attach each shackle to pin removal tools (1).
H3-2
6. Valve Body
7. O-Ring
8. Valve Stem
9. O-Ring
Rear Suspensions
FIGURE 3-3. SUSPENSION MOUNTING PIN
(Typical, Top and Bottom)
1. Pin
2. Capscrew
3. Locknut
4. Bearing Spacer
5. Retainer Ring
Do not exceed 10 tons of force when applying
pressure to the cylinder. Damage to the tool or
suspension components may result, as well as
personal injury to maintenance personnel
13. Apply pressure to the cylinder using the hand
pump (not shown).
14. When the cylinder reaches the end of its stroke,
remove one of the shackles from the cylinder
and connect the cylinder shackle directly to the
pin removal tool. This is necessary to pull the
pin the remaining distance.
15. Remove the pin from the lower mounting.
16. Install the tool on the upper pins and repeat the
pin removal process. (If the pin does not contain
the necessary puller holes, an alternative
removal method is needed.)
6. Bearing
7. Capscrew
8. Washer
9. Sleeve
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