MAINTENANCE
7-60
Check Tightening Torque of Bolts and Nuts
--- every 250 hours (first time after 50 hours)
Tighten or retighten all bolts and nuts to the torque values shown in the Table below. In addition, check bolts and
nuts for looseness and omission. if any are loose or missing, be sure to retighten or supply new parts. Check
tightness after the first 50 hours then every 250 hours.
Torque
No. Descriptions
Bolt Dia.
mm
Q’ty
Wrench Size
mm
N
⋅
m (kgf
⋅
m)
(lbf
⋅
ft)
1. Engine cushion rubber mounting bolt
12
4
19
88
(9)
(65)
2. Engine bracket mounting bolt (Front)
10
8
17
49
(5)
(36)
3. Hydraulic oil tank mounting bolt
12
4
19
88
(9)
(65)
7/16-20UNF
17 24.5
(2.5)
(18)
19
29.5
(3)
(22)
9/16-18UNF
22 39
(4)
(29)
3/4-16UNF
27 93
(9.5)
(69)
4.
Union joints
for hydraulic
hoses and
pipes
Metal face seal
fitting for hydraulic
hoses and piping
1-1/16-12UNF
36
175
(18)
(129)
5. Pump
mounting
bolt
12
2
19
88
(9)
(65)
6. Pump cover mounting bolt
10
8
17
49
(5)
(36)
Control valve mounting bolt
10
4
17
49
(5)
(36)
7.
Control valve base mounting bolt
10
4
17
49
(5)
(36)
8. Swing device mounting bolt
12
4
19
88
(9)
(65)
9. Battery
mounting
nut
6
4
10
5
(0.5)
(3.5)
10 3
17
49
(5)
(36)
10. Canopy
mounting
bolt
12 4
19
88
(9)
(65)
Upperstructure 10
16
17
49
(5)
(36)
11.
Swing bearing
mounting bolt
Undercarriage 10
18
17
49
(5)
(36)
12. Travel device mounting bolt
10
16
8 (Socket)
64
(6.5)
(47)
13. Sprocket mounting bolt
10
18
8 (Socket)
64
(6.5)
(47)
14. Steel crawler guide mounting bolt
10
8
17
49
(5)
(36)
15. Lower roller mounting bolt
14
12
22
177
(18)
(130)
6
10
5
(0.5)
(3.5)
8
13
9.8
(1)
(7)
16. Cover
mounting
bolt
10
17
49
(5)
(36)
17. Counterweight mounting bolt
20
3
30
400
(41)
(297)
8
13
20
(2)
(14)
10
17
49
(5)
(36)
12
19
88
(9)
(65)
14
22
137
(14)
(101)
18. Front pin lock plate bolts
16
24
205
(21)
(152)
IMPORTANT:
•
Before installing, clean the bolt and nut threads to remove soil, rust, and/or dust.
•
When installing new bolts and/or nuts, apply lubricant (e.g. white zinc B solved into spindle oil) to
the screw threads.
•
Tighten bolts and nuts to the specifications. If tightened with excessively high or inadequate torque,
missing or breakage of bolts and/or nut may result.
•
In case the counterweight mounting bolts became loose, consult your nearest Hitachi dealer for
retightening.
Содержание ZAXIS 17U-2
Страница 1: ......
Страница 7: ...CONTENTS MEMO ...
Страница 9: ...MACHINE NUMBERS MEMO ...
Страница 39: ...SAFETY S 30 MEMO ...
Страница 41: ...SAFETY SIGNS S 32 SS4387344 SS 2901 SS3090482 SS 2869 SS3088058 SS 2870 ...
Страница 42: ...SAFETY SIGNS S 33 SS4433590 SS 2871 SS4604981 SS 2872 SS4642517 SS 2873 ...
Страница 43: ...SAFETY SIGNS S 34 SS4430516 SS 2902 2Way Multi Lever Equipped Machines SS4605065 SS 2875 SS3110371 SS 2876 ...
Страница 45: ...SAFETY SIGNS S 36 MEMO ...
Страница 53: ...OPERATOR S STATION 1 8 MEMO ...
Страница 55: ...BREAK IN 2 2 MEMO ...
Страница 71: ...DRIVING THE MACHINE 4 10 MEMO ...
Страница 97: ...OPERATION 5 26 MEMO ...
Страница 103: ...TRANSPORTING 6 6 MEMO ...
Страница 116: ...MAINTENANCE 7 13 7 Swing post M1MS 07 008 ...
Страница 165: ...MAINTENANCE 7 62 MEMO ...
Страница 167: ...CONSUMABLE PARTS LIST 8 2 MEMO ...
Страница 169: ...MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS 9 2 MEMO ...
Страница 179: ...REFERENCE 13 2 MEMO ...
Страница 183: ...INDEX 14 4 MEMO ...