Terex TS14G, Руководство по обслуживанию

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Section 160-0020
5
SM 1780 4-99
Rear Axle - Differential
10. Using a bearing puller, remove cone (3) from
plain case (4) and cone (25) from flanged case (14).
Match up cones with cups (2 & 24) previously
removed.
INSPECTION
Numbers in parentheses refer to Fig. 1.
The importance of careful and thorough inspection
cannot be stressed enough. Thorough inspection and
necessary replacement of parts now, may eliminate
costly and avoidable trouble later.
Note:
If the differential is equipped with the NoSPIN®
element (44), refer to Section 160-0080, NOSPIN
ELEMENT for inspection of the NoSPIN®
components.
1. Clean all parts in a suitable solvent.
2. Immediately after cleaning, dry all parts, except
bearings, with compressed air, or lint-free cloth.
Bearings are better left to air dry, then inspected and
oiled thoroughly with gear lubricant for protection
from corrosion.
3. With the parts cleaned, coat parts immediately
with light oil to prevent corrosion. If parts are not to
be assembled immediately, treat them with a good
rust preventative and wrap them with treated paper or
other suitable material designed to prevent corrosion.
4. Replace all gaskets, 'O' rings and seals with new
parts.
5. Before installing the differential assembly to the
banjo, clean the inside and outside of the banjo
housing to remove any foreign material.
6. Inspect all gears, pinions and splines for cracked or
broken teeth, excessive wear, and pitted or scored
surfaces. Repair or replace as necessary.
Note:
If either ring gear (13) or pinion gear (28) is
defective, both gears must be replaced, because they
are serviced only as a matched set. This set is
identified by a serial number on the OD of the ring
gear and outer face of the pinion gear. It is also
advisable to replace side gears (6 & 10) or spider
pinion gears (8) in matched sets only, because a
newer gear installed to operate in conjunction with an
older, worn gear tends to carry an uneven portion of
the load. This creates an excessive amount of stress
on the new gear.
7. Check for pitted, scored or worn thrust surfaces of
differential case halves, spider trunnions and thrust
washers. It is also advisable to replace thrust
washers in sets, as the use of a combination of old
and new washers may cause premature failure.
8. Inspect all housings (4, 14 & 26) and bearing cage
(39) for bore damage, cracks and wear. Replace as
necessary.
9. Check the amount of run-out on the machined
surfaces of bearing cage (39). The outer machined
surface on the hub of the bearing cage must be
concentric with the bearing cup bore within 0.05 mm
(0.002 in) total indicator reading (T.I.R.).
10. The machined mating surfaces of plain case (4)
and flanged case (14) must be square with the axis of
the cases within 0.05 mm (0.002 in) T.I.R.. The mating
diameters of the cases must also be concentric within
0.08 mm (0.003 in) T.I.R..
11. Check the depth that the bearing rollers have worn
into the wear surfaces. If the thrust face at the large
end of the roller, which is ground and polished, is
chipped or worn down to the centre area, or if the
separator has become worn enough to drag on the
cone, discard the bearing.
ASSEMBLY
Numbers in parentheses refer to Fig. 1.
WARNING
To prevent personal injury and property
damage, be sure lifting equipment is properly
secured and of adequate capacity to do the job
safely.
SM - 095
Fig. 7 - Removing Ring Gear
Courtesy of Machine.Market