SANY Crawler Hydraulic Excavator (SY195C9, SY205C9, SY215C9, SY225C9). Shop Manual (2013) - page 6
Structure and Function
Final drive AS (Daewoo)
22
6
22
3
14 15
25
24
3
26
21
4
10
29
33
2
9
23
13
27
12
28
11
1
8
32
20
9
30
19
31
17
7
5
18
27
16
WX215-1204010G
1) O-ring
13) Planetary gear shaft
25) Seal ring
2) Mandrel
14) Sun gear
26) O-ring
3) Float seal
15) Snap ring
27) Thrust washer
4) Gear carrier
16) Planetary gear
28) Thrust washer
5) Hub
17) Needle bearing
29) Thrust plate
6) Spacer
18) Drive gear
30) Gear carrier
7) Planetary gear shaft
19) Spring pin
31) Gasket
8) Planetary gear
20) End cover
32) O-ring
9) Thrust washer
21) Socket head bolt
33) O-ring
10) Spring pin
22) Radial thrust ball bearing
34) Fill port
11) Needle bearing
23) O-ring
35) Level port
12) Floating bush
24) Plug
36) Drain port
4-10
Structure and Function
4.2.3 Swing machinery
9
20
19
8
21
7
22
59~74 Nm
10
6
23
5
24
11
4
12
25
26
13
3
27
2
1
14
15
16
17
18
28
ZX215-1002007
4-11
Structure and Function
1) Plug
11) No. 2 planetary gear GP
2) Oil seal
12) No. 2 planetary gear (No. of teeth:17)
3) Self-aligning bearing
13) Spring pin
4) Ring gear (No. of teeth:52)
14) Swing reducer screw plug
5) No. 2 planetary carrier
15) Grease fitting
6) No. 1 planetary carrier
16) Self-aligning bearing
7) No. 2 sun gear (No. of teeth: 16)
17) Bearing sealing
8) No. 1 sun gear (No. of teeth:14)
18) Swing pinion
9) Swing motor
19) Dipstick
10) No. 1 planetary gear (No. of teeth:18)
20) Oil filling pipe
Specifications
Reduction ratio:
(14+25) /14× (16+25) /14= 20.04
Unit: mm
Criteria
No.
Check item
Remedy
Standard clearance
Clearance limit
Backlash between swing motor shaft
21
0.18
- 0.28
—
Replace
and No. 1 sun gear
Backlash between No. 1 sun gear
22
0.16
- 0.50
1.00
and No.1 planetary gear
Backlash between No. 1 planetary
23
0.18
- 0.59
1.10
gear and ring gear
Backlash between No. 1 planetary
24
0.39
- 0.71
1.20
carrier and No. 2 sun gear
Backlash between No. 2 sun gear
25
0.16
- 0.50
0.90
Replace
and No.2 planetary gear
Backlash between No. 2 planetary
26
0.18
- 0.59
1.00
gear and ring gear
Backlash between No. 2 planetary
27
0.07
- 0.23
—
carrier and swing pinion
Backlash between swing pinion and
28
0.22
- 1.32
2.00
swing bearing
4-12
Structure and Function
4.2.4 Swing bearing
b
a
A
A
1
2
3
549±50 Nm
549±50 Nm
A-A
ZX215-1002008
1) Swing bearing inner race (Teeth: 91)
Specifications
2) Ball
Reduction ratio: 91/13= 7
3) Swing bearing outer race
Amount of filled grease: 13±1 Kg
a. Inner race soft zone S position
b. Outer race soft zone S position
Unit: mm
Check item
Criteria
Remedy
Axial clearance of bearing
Standard clearance
Clearance limit
Replace
(when mounted on chassis)
0.5~1.6
3.2
4-13
Structure and Function
4.3 Undercarriage and Frame
4.3.1 Track frame and recoil spring
1
2
3
4
8
7
6
5
10
9
11
X
X
ZX215-1002009
1) Idler
Ɣ Dimension and number of track rollers may
vary depending on the machine model, but
2) Track frame
the basic structure is the same.
3) Carrier roller
4) Sprocket
Model
Q'ty (One side)
5) Track roller
SY195C9
7
6) Track shoe
SY205C9
7
7) Center guard
SY215C9
8
8) Front guard
SY225C9
9
4-14
Structure and Function
Standard track shoe
Model
SY195C9
SY205C9
SY215C9
SY225C9
Item
Shoe width(mm)
600
600
600
600
Link pitch(mm)
190
190
190
190
Q'ty (One side)
45
46
47
49
Unit: mm
No.
Check item
Criteria
Remedy
Standard size
Tolerance
Repair limit
Vertical width of
9
Track frame
107
—
—
Build-up
idler guide
Idler support
105
—
—
welding or
Horizontal width
Track frame
250
—
—
replace
10
of idler guide
Idler support
247
—
—
Standard size
Repair limit
Free length
Installation
Installation
Free
Installation
x Outside
11
Recoil spring
length
load
length
load
Replace
diameter
157.9 kN
598 x 247
466
545
133.9 kN
{16112 kg}
4-15
Structure and Function
4.3.2 Idler
5
6
4
3
7
8
157~255 Nm
1
2
W13081901
4-16
Structure and Function
Unit: mm
No.
Check item
Criteria
Remedy
Outside diameter of protru-
Standard size
Repair limit
1
sion
560
—
2
Outside diameter of tread
520
508
Build-up
3
Thickness of tread
30
24
welding or
4
Difference of tread
20
26
replace
5
Total width
164
—
6
Width of tread
39.5
—
7
Diameter of shaft
65
—
Standard clearance
Clearance limit
Clearance between bush-
Replace
8
ing and support (Sum of
0.5~1.0
—
clearance at both sides)
4-17
Structure and Function
4.3.3 Carrier roller
5
3
8
4
2
1
6
7
ZX215-1002011
Unit: mm
No.
Check item
Criteria
Remedy
Standard size
Repair limit
1
Outside diameter of flange
165
—
2
Outside diameter of tread
140
130
3
Width of tread
44
—
4
Thickness of tread
41.5
34
5
Width of flange
18
—
Standard
Tolerance
Standard
Clearance
Clearance between shaft
Replace
6
size
Shaft
Hole
clearance
limit
and bushing
50
—
—
—
—
Standard
Tolerance
Standard
Interfer-
Interference between roller
7
size
Shaft
Hole
interference
ence limit
and bushing
57
—
—
—
—
Standard clearance
Clearance limit
8
Axial clearance of roller
0.44
- 0.76
—
4-18
Structure and Function
4.3.4 Track roller
9
3
8
2
1
549±59 Nm
7
5
6
4
W13081902
Unit: mm
No.
Check item
Criteria
Remedy
Standard clearance
Repair limit
1
Outside diameter of flange
193
—
2
Outside diameter of tread
160
148
Build-up weld-
3
Thickness of tread
46.5
40.5
ing or replace
4
Total width
237
—
5
Width of tread
46.5
—
6
Width of flange
32
—
7
Inside width
80
8
Diameter of shaft
65
—
Clearance between bushing
Standard clearance
Clearance limit
Replace
9
and collar
0.5
- 1.0
—
4-19
Structure and Function
4.3.5 Track shoe
1
4
19
21
23
7
15
11
12
10
20
22
24
6
8
3
13
5
14
2
9
17
16
18
W13100801
4-20
Structure and Function
Unit: mm
No.
Check item
Criteria
Remedy
Standard size
Repair limit
1
Link pitch
190
193
Reverse or replace
Standard size
Repair limit
2
Outside diameter of bushing
59.45
53.7
3
Thickness of bushing metal
10.75
5.75
Standard size
Repair limit
Repair or replace
4
Link height
105
98
5
155.57
6
Shoe bolt pitch
119.57
7
69
8
Inside width
82.57
9
Link
Overall width
40
10
Tread width
38
Regular
2.7
11
Protrusion of pin
Master
2.7
Adjust or replace
Regular
3.7
12
Protrusion of bushing
Master
0.0
Regular
207
13
Overall length of pin
Master
209
Regular
136
14
Overall length of bushing
Master
128.5
15
Thickness of spacer
—
16
Bushing
88.2 - 245 kN {9 - 25 ton}
17
Press-fitting force
Regular pin
127.4 - 274.4 kN {13 - 28 ton}
—
18
Master pin
78.4 - 147 kN {8 - 15 ton}
4-21
Structure and Function
Unit: mm
No.
Check item
Criteria
Remedy
Tightening torque (Nm {kgm})
Retightening angle (°)
a. Regular link
Triple grouser
750±22.5
120±10
shoe
{62.5±2.3}
19
Shoe bolt
Retighten
Tightening torque
Retightening angle
Lower limit torque
b. Master link
(Nm {kgm})
(°)
(Nm {kgm})
—
—
—
Tolerance
Standard interfer-
Standard size
Interference between
Shaft
Hole
ence
20
bushing and link
0
-0.25
59.45
0.20
- 0.32
-0.05
-0.32
Interference between regu-
0
-0.23
21
38.25
0.19
- 0.29
lar pin and link
-0.04
-0.29
Tolerance
Standard clear-
Standard size
Clearance between regular
ance
Shaft
Hole
22
pin and bushing
0
0.8
Adjust or
38.25
0.50
- 0.84
-0.04
0.5
replace
Tolerance
Standard interfer-
Standard size
Interference between mas-
Shaft
Hole
ence
23
ter pin and link
-0.08
-0.23
38.25
0.12
- 0.21
-0.11
-0.29
Tolerance
Standard clear-
Standard size
Clearance between master
Shaft
Hole
ance
24
pin and bushing
-0.5
1
38.25
1 - 1.7
-0.7
0.5
4-22
Structure and Function
4.3.6 Triple grouser shoe
5
6
7
1
8
2
3
4
ZX215 1002014
Unit: mm
No.
Check item
Criteria
Remedy
Standard size
Repair limit
1
Height
26
16
2
Thickness
10
3
29.5
Length of base
4
22
Build-up welding
5
20.5
or replace
6
Length at tip
17
7
18
Standard size
Repair limit
8
Thickness
36
26
4-23
Structure and Function
4.4 Hydraulic System, Part 1
4.4.1 Hydraulic equipment layout
1)
Bucket cylinder
2)
Arm cylinder
3)
Boom cylinder
4)
Hydraulic tank
5)
Hydraulic oil filter
6)
Control valve
7)
Hydraulic pump
8)
Radiator
9)
Accumulator
10)
Left travel motor
11)
Right travel motor
12)
Swing motor
13)
Lockout lever
1
14)
Left pilot valve
15)
Center swivel joint
16)
Right pilot valve
17)
Travel pilot valve
18)
Solenoid valve assembly
18A. Pilot lockout solenoid valve
18B. Boom priority solenoid valve
18C. Bucket confluence solenoid valve
18D. Swing priority solenoid valve
18E. Hi/Lo travel speed solenoid valve
4-24
Structure and Function
2
3
4
5
6
7
8
A
9
10
11
A
12
18A
13
18B
18C
14
18D
15
18E
16
17
18
W13081903
4-25
Structure and Function
4.4.2 Hydraulic tank and filter
2
1
3
4
5
6
A
A
7
A-A
ZX215-1002017
1) Hydraulic tank
Specifications
2) Level gauge
Tank capacity: 239 L (63 US gal)
3) Oil filler cap
Available capacity: 172 L (45.5 US gal)
4) Return oil filter element
Breather valve
5) Bypass valve
Filter fineness: 10ȝm
6) Breather valve
Ambient temperature: -20~100°C
7) Oil-suction filter element
Set pressure:
Air inlet side: 0.005MPa
Air outlet side: 0.05MPa
4-26
Structure and Function
4.4.3 Hydraulic pump
Type: K3V112DTP1N9R
PH1
PH2
a2
a1
{36N·m}
{36N·m}
a5
A1
{16N·m}
A2
a4
{36N·m}
Clockwise
B3
DR1{170N·m}
B1
DR2{170N·m}
a3
5
Psv2
{36N·m}
4
A3
DR3{170N·m}
DR4{170N·m}
3
2
1
ZX215-1002018
4-27
Structure and Function
Outline
Ɣ This pump consists of 2 variable capacity swash plate plunger pumps, 2 regulators, and 1 pi-
lot gear pump.
NOTE: For the location of the hydraulic pump on the machine, see “Hydraulic equipment layout”
on page 4-24.
a1:
F. pump main pressure detection port
1)
Front pump
a2:
R. pump main pressure detection port
2)
Rear pump
a3:
F. pump regulator pressure detection port
3)
Pilot gear pump
a4:
Adjustor control pressure detection port
4)
Front pump regulator
a5:
Pilot gear pump output pressure detection port
5)
Rear pump regulator
PH1: F. pump pressure sensor assembly port
PH2: R. pump pressure sensor assembly port
A1:
F. pump delivery port
A2:
R. pump delivery port
A3:
Pilot gear pump delivery port
Psv1: F. pump regulator control port
Psv2: R. pump regulator control port
Dr1: F. pump drain plug
Dr2: R. pump drain plug
Dr3: Air bleeder
Dr4: Drain plug
B1:
Pump suction port
B3:
Pilot gear pump oil suction port
4-28
Structure and Function
2
3
13
6
7
14
8
9
16
10
15
1
12
4
5
11
ZX215-1002019
1) Front shaft
9) End cover
2) Min. delivery adjusting screw
10) Rear shaft
3) Front casing
11) Rear casing
4) Swash plate
12) Gear pump
5) Slipper
13) Piston
6) Plunger
14) Max. delivery adjusting screw
7) Cylinder block
15) Gear shaft
8) Valve plate
16) Driving pin
4-29