Section 1 - General Information
Torque Settings
Zinc Plated Fasteners and Dacromet Fasteners
1-5
1-5
9803/9390-2
Torque Settings
Zinc Plated Fasteners and Dacromet Fasteners
T11-002
Introduction
Some external fasteners on JCB machines are
manufactured using an improved type of corrosion
resistant finish. This type of finish is called Dacromet and
replaces the original Zinc and Yellow Plating used on
earlier machines.
The two types of fasteners can be readily identified by
colour and part number suffix.
K
Table 1. Fastener Types
(
T
1-5)
.
Table 1. Fastener Types
Note: As the Dacromet fasteners have a lower torque
setting than the Zinc and Yellow fasteners, the torque
figures used must be relevant to the type of fastener.
Note: A Dacromet bolt should not be used in conjunction
with a Zinc or Yellow plated nut, as this could change the
torque characteristics of the torque setting further. For the
same reason, a Dacromet nut should not be used with a
Zinc or Yellow plated bolt.
Note: All bolts used on JCB machines are high tensile and
must not be replaced by bolts of a lesser tensile
specification.
Note: Dacromet bolts, due to their high corrosion
resistance are used in areas where rust could occur.
Dacromet bolts are only used for external applications.
They are not used in applications such as gearbox or
engine joint seams or internal applications.
Bolts and Screws
Use the following torque setting tables only where no
torque setting is specified in the text.
Note: Dacromet fasteners are lubricated as part of the
plating process, do not lubricate.
Torque settings are given for the following conditions:
Condition 1
– Un-lubricated fasteners
– Zinc fasteners
– Yellow plated fasteners
Condition 2
– Zinc flake (Dacromet) fasteners
– Lubricated zinc and yellow plated fasteners
– Where there is a natural lubrication. For example,
cast iron components
Verbus Ripp Bolts
Fig 2.
Torque settings for these bolts are determined by the
application. Refer to the relevant procedure for the
required settings.
Fastener
Type
Colour
Part No. Suffix
Zinc and
Yellow
Golden finish
'Z' (e.g. 1315/3712Z)
Dacromet
Mottled silver finish 'D' (e.g. 1315/3712D)
Summary of Contents for Groundhog 6x4
Page 4: ...Section 1 General Information 1 0 1 0 9803 9390 2 Notes...
Page 6: ...Page No Contents Section 1 General Information 1 ii 1 ii...
Page 24: ...Section 2 Care and Safety 2 0 2 0 9803 9390 2 Notes...
Page 26: ...Page No Contents Section 2 Care and Safety 2 ii 2 ii...
Page 40: ...Section 3 Routine Maintenance 3 0 3 0 9803 9390 2 Notes...
Page 42: ...Page No Contents Section 3 Routine Maintenance 3 ii 3 ii...
Page 82: ...Section 1 General Information 1 0 1 0 9803 9390 2 Notes...
Page 84: ...Page No Contents Section A Optional Equipment A ii A ii...
Page 88: ...Section 1 General Information 1 0 1 0 9803 9390 2 Notes...
Page 90: ...Page No Contents Section B Body and Framework B ii B ii...
Page 104: ...Section C Electrics C 0 C 0 9803 9390 2 Notes...
Page 106: ...Page No Contents Section C Electrics C ii C ii...
Page 148: ...Section 1 General Information 1 0 1 0 9803 9390 2 Notes...
Page 150: ...Page No Contents Section D Controls D ii D ii...
Page 156: ...Section E Hydraulics E 0 E 0 9803 9390 2 Notes...
Page 158: ...Page No Contents Section E Hydraulics E ii E ii...
Page 163: ...Section F Transmission F 0 F 0 9803 9390 2 Notes...
Page 165: ...Page No Contents Section F Transmission F ii F ii...
Page 167: ...Section F Transmission Technical Data Data F 2 F 2 9803 9390 2 Page left intentionally blank...
Page 183: ...Section G Brakes G 0 G 0 9803 9390 2 Notes...
Page 185: ...Page No Contents Section G Brakes G ii G ii...
Page 189: ...Section H Brakes Technical Data System Type H 4 H 4 9803 9390 2 Page left intentionally blank...
Page 191: ...Section H Steering H 0 H 0 9803 9390 2 Notes...
Page 193: ...Page No Contents Section H Steering H ii H ii...
Page 195: ...Section H Steering Technical Data Data H 2 H 2 9803 9390 2 Page left intentionally blank...
Page 207: ...Section K Engine K 0 K 0 9803 9390 2 Notes...
Page 208: ...Page No Contents Section K Engine K i K i Technical Data Specification K 1...
Page 209: ...Page No Contents Section K Engine K ii K ii...
Page 213: ...Section S Suspension S 0 S 0 9803 9390 2 Notes...
Page 215: ...Page No Contents Section S Suspension S ii S ii...
Page 217: ...Section S Suspension Technical Data Data S 2 S 2 9803 9390 2...