Hitachi ZX200-5G Workshop Manual page 303

d
CAUTION: The housing (26) assembly weight:
110 kg (245 lb)
IMPORTANT: Check that the flange surface of
housing (26) does not touch the special tool (ST
5097).
15. Hoist and place the housing (26) assembly on
the special tool (ST 5097). Install the housing (26)
assembly with bolts (M20, Pitch 2.5 mm) (2 used)
so that the stopper at the bottom of special tool
(ST 5097) should be inserted into the clearance
between teeth of the pinion gear in shaft (31).
Secure the special tool (ST 5097) on a workbench in
order to receive the reaction force.
j : 30 mm
a
a- Stopper
IMPORTANT: Check the direction to install bearing
nut (15).
16. Apply grease onto the thread part of bearing nut
(15). Place the thread part of bearing nut (15) onto
shaft (31). At this time, face the stepped side of
bearing nut (15) to the roller bearing (14) side.
17. Tighten bearing nut (15) by using the special tool
(ST 2926).
m : 500 N·m (50 kgf·m, 370 lbf·ft)
ST 2926
SECTION 3 UPPERSTRUCTURE
Group 10 Swing Device
26
ST 5097
W178-02-11-134
15
W178-02-11-146
W3-10-2-9
18. Remove the bolts (M20, Pitch 2.5 mm) (2 used)
which secure housing (26) and the special tool (ST
5097).
j : 30 mm
19. Turn housing (26) to both sides five times. Tap
housing (26) several times by using a plastic
hammer.
20. Install housing (26) to the special tool (ST 5097) with
bolts (M20, Pitch 2.5 mm) (2 used).
j : 30 mm
21. Tighten bearing nut (15) by using the special tool
(ST 2926).
m : 500 N·m (50 kgf·m, 370 lbf·ft)
22. Repeat step 18 and step 21 two to three times so
that bearings of bearing nut (15) and roller bearings
(14, 27) can fit.
23. Remove the bolts (M20, Pitch 2.5 mm) (2 used)
which secure housing (26) and the special tool (ST
5097).
j : 30 mm
d
CAUTION: The housing (26) assembly weight:
110 kg
24. Hoist and place the housing (26) assembly on a flat
stand. When the housing (26) assembly is placed,
check that the contacting position of oil seal (28)
on the sleeve (29) outer surface does not move. In
case the contacting position of oil seal (28) moves,
bearing nut (15) is tightened insufficiently. Perform
step 17 to step 23 again.
25. Install housing (26) to the special tool (ST 5097) with
bolts (M20, Pitch 2.5 mm) (2 used).
j : 30 mm