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Grove
Published 1-20-2017, Control# 483-02
11-31
CD5515-2/YB5515-2 SERVICE MANUAL
STRUCTURALS
11
18.
Using a suitable puller, remove bearing cup (14) from
housing (25).
19.
Using a suitable puller, remove bearing cup (14) from
cover (22).
Inspection
Clean all parts. See Section 1. Make sure the breather (29,
Figure 11-24) is clean. Make a careful inspection of all parts,
including gears, shafts and bearings.
Replace all seals and gaskets.
Assembly
1.
If removed, install a new bearing cup (14) into housing
(25).
2.
Install new wiper (3) into housing (25).
3.
Install pinion shaft (1) into housing (25) through seal (3).
Be careful not to damage the seal.
NOTE:
Before installing any bearing cone, pack the
bearing with a Lithium base, E.P. No. 2 bearing
grease.
4.
Pack both bearing cones (6) with grease and install onto
worm (26).
5.
Insert worm (26) into housing (25).
6.
Pack first bearing cone (15) with grease and install onto
pinion shaft (1). Install first spacer (16).
7.
Using two keys (2), install worm gear (17) onto pinion
shaft (1).
8.
Install second spacer (16) and second bearing cone (15)
onto pinion shaft (1). Be sure bearing cones are packed
with grease before assembly.
9.
Install seal (8) into end cap (12). Install bearing cup (5).
Install O-ring (7). Lubricate the seal and O-ring with
grease before assembly.
10.
Install seal (8) into motor cap (27). Install O-ring (7).
Lubricate seal and O-ring with grease before assembly.
11.
Insert the end of worm (25) into end motor cap (12).
Fasten end motor cap (12) to housing (25) with socket
head capscrews (13).
12.
Align the gear teeth of worm (25) with the teeth of worm
gear (17).
13.
If the original bearing cups and cones were installed in
the end caps and onto the worm, the existing shims (9)
through (11) may be installed between housing (25) and
end cap (27). Install the shims and end cap (27). Attach
end cap (27) with capscrews (28).
If new bearings were installed, proper bearing pre-load
must be determined before final installation of the end
cap (27).
a.
Install end cap (27) without shims installed.
b.
Using a dial indicator, measure the amount of axial
movement of the worm. Proper axial movement
must be between -0.025 to +0.05 mm (-0.001 to +
0.002 in). Determine the amount of shims required
to acquire the proper axial movement. Then, install
the shims between housing (25) and end cap (27).
Fasten with capscrews (28).
14.
If the original bearings were installed on pinion shaft (1),
then the existing shims (19) through (21) may be
installed between cover (22) and housing (25). Install
shims and fasten cover (22) with capscrews (23).
If new bearings were installed, proper bearing pre-load
must be determined before final installation of the cover.
a.
Install the cover without shims.
b.
Using a dial indicator, measure the amount of axial
m o v e m e n t o f t h e p i n i o n s h a ft . P r o p e r a x i a l
movement must be between -0.076 to -0.127 mm
(-0.003 to -0.005 in). Determine the amount of
s h i m s r e q u i r e d t o a c q u i r e t h e p r o p e r a x i a l
movement. Then, install the shims between housing
(25) and cover (22). Fasten with capscrews (23).
15.
Fill the housing with a Lithium base E.P. No. 2 bearing
grease through the grease fitting on the cover. See
Preventative Maintenance, page 5-1.
Installation
1.
Install the gearbox in reverse order of removal.
2.
When installing the swing motor, use a new gasket.
3.
Align the pinion gear with the swing gear following the
instructions in Swing Gearbox and Pinion, page 11-26.
OUTRIGGERS
Outrigger Monitoring System (OMS)
(Optional—Standard in North America)
The Outrigger Monitoring System (OMS) proximity switches
(if equipped) are mounted outside the outrigger housing
tubes. The proximity switches identify whether an outrigger
beam is at the fully extended position or at any position less
than fully extended.
Removal
1.
Disconnect switch cable (1) from harness.
2.
Remove switch mounting bracket (2).
3.
Remove jam nuts (3) and thread switch (4) out of the
mounting bracket.
Reference Only
Содержание Grove YB5515-2
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