XE210C Hydraulic Excavator
Operating and Maintenance Manual
128
XE260C
18
408
27
400
17
Fixing bolt of rail clamp
16
8
24
210
18
Supporting bolt and nut of working device pin
shaft
16
-
24
280
19
Counterweight
mounting bolt
XE210C
36
4
55
3000
XE230C/XE260C
36
4
55
3000
20
Low-pressure pipe adapter and T-shape bolt
clip
8
-
13
22
5
-
8
9
6
-
10
9
b)
Tightening Torques
Table 2-5 Tightening Torques
Bolt
specification
Size of socket wrench
mm
Size of inner hexagonal
wrench mm
Torque Nm
10.9 class
8.8 class
M8
13
6
30
20
M1O
16
8
70
50
M12
18
10
120
90
M14
21
12
195
140
M16
24
14
300
210
M18
27
410
300
M20
30
17
600
400
M22
34
800
550
M24
36
19
1000
700
M27
41
1500
1050
M30
46
22
1850
1450
M36
55
27
3000
2450
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.
Table 2-6 Replacement Intervals (Hours)
Accessory
Utilizing rate
hydraulic oil
Filter element
Bucket
100%
2000
500
Hammer crusher
100%
600
100
Maintenance under special environment conditions