SANY LATIN AMERICA
4-12
SY195/205/215/225C9 Crawler Hydraulic Excavator
Structure and Function
Shop Manual - June 2013
Specifi cations
Reduction ratio:
(14+25) /14× (16+25) /14= 20.04
1) Plug
2) Oil
seal
3) Self-aligning
bearing
4) Ring gear (No. of teeth:52)
5) No. 2 planetary carrier
6) No. 1 planetary carrier
7) No. 2 sun gear (No. of teeth: 16)
8) No. 1 sun gear (No. of teeth:14)
9) Swing
motor
10) No. 1 planetary gear (No. of teeth:18)
11) No. 2 planetary gear GP
12) No. 2 planetary gear (No. of teeth:17)
13) Spring pin
14) Swing reducer screw plug
15) Grease
fi
tting
16) Self-aligning bearing
17) Bearing sealing
18) Swing pinion
19) Dipstick
20) Oil
fi
lling pipe
No. Check
item
Criteria
Remedy
Standard clearance
Clearance limit
21
Backlash between swing motor shaft
and No. 1 sun gear
0.18 – 0.28
—
Replace
22
Backlash between No. 1 sun gear
and No.1 planetary gear
0.16 – 0.50
1.00
Replace
23
Backlash between No. 1 planetary
gear and ring gear
0.18 – 0.59
1.10
24
Backlash between No. 1 planetary
carrier and No. 2 sun gear
0.39 – 0.71
1.20
25
Backlash between No. 2 sun gear
and No.2 planetary gear
0.16 – 0.50
0.90
26
Backlash between No. 2 planetary
gear and ring gear
0.18 – 0.59
1.00
27
Backlash between No. 2 planetary
carrier and swing pinion
0.07 – 0.23
—
28
Backlash between swing pinion and
swing bearing
0.22 – 1.32
2.00
Unit: mm
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