XCMG XE210C Operating & Maintenance Manual page 128

XE210C Hydraulic Excavator
17 Fixing bolt of rail clamp
Supporting bolt and nut of working device pin
18
shaft
Counterweight
19
mounting bolt
Low-pressure pipe adapter and T-shape bolt
20
clip
b) Tightening Torques
Bolt Size of socket wrench
specification
M8
M1O
M12
M14
M16
M18
M20
M22
M24
M27
M30
M36
Note: the desired tightening torque is expressed in Nm. For example, in case of tightening the bolt or nut
with a 1m long wrench, turn the tail end of wrench by a force of 120N, and create the following torques:
1m X120 N=120 Nm
In case of creating the same torque with a 0.25m wrench:
0.25m× =120Nm
The desired force shall be:
120 /0.25=480 N

Maintenance of hammer crusher
The operation of hydraulic hammer crusher will accelerate the pollution and deterioration of hydraulic oil.
Therefore, in comparison with the machine with a bucket, require to replace the hydraulic oil and hydraulic
oil tank filter frequently, otherwise the hammer crusher, hydraulic oil pump and other components of
hydraulic system may be damaged, and adopt the following recommended replacement intervals.
Accessory
Bucket
Hammer crusher

Maintenance under special environment conditions
XE260C
XE210C
XE230C/XE260C
Table 2-5 Tightening Torques
Size of inner hexagonal
mm wrench mm
13
16
18
21
24
27
30
34
36
41
46
55
Table 2-6 Replacement Intervals (Hours)
Utilizing rate
100%
100%
18
16 8
16 -
36 4
36 4
8 -
5 -
6 -
10.9 class
6
8
10
12
14
17
19 1000
1500
22 1850
27 3000
hydraulic oil
2000
600
Operating and Maintenance Manual 128
408 27
24
24
55
55
13
8
10
Torque Nm
30
70
120
195
300
410
600
800
Filter element
500
100
400
210
280
3000
3000
22
9
9
8.8 class
20
50
90
140
210
300
400
550
700
1050
1450
2450