Hitachi ZW 550-G, Technical Manual

Page: 33 / 50

00-17
General Information
Outline
Liquid gasket and screw lock
agent
To reassemble the disassembled parts, be sure to use
the specified liquid gasket or screw lock agent or the
equivalent according to the following lists:
Cautions regarding parts removal
If a screw or shaft to be removed has been locked by
one of the above agents, remove the screw or shaft
using a general tool, such as a wrench or puller.
If it is difficult to remove the screw or shaft, heat the bolt
to soften the agent (200 to 250°C) using a soldering iron
or gas torch.
Caution
If there is a seal near the screw or shaft to be removed,
carefully use the heating method for removal, to avoid
damage to the seal.
If heat has been used to remove the bolt a new bolt
should be used during reassembly.
Cautions regarding reassembly
To reassemble a screw
Completely remove the hardened lock agent from the
screw and the threaded hole before reassembling the
screw.
Note
A piece of hardened lock agent may be peeled off and
remain in the component. The remaining piece may
cause malfunction during fastener installation.
To bond a plane or to fit a shaft
Remove the hardened lock agent using a wire brush or
the like, and polish the surface using sand paper. Use
of a loctite primer like Locquic ® Primer T cleans
threads and speeds curing time.
Antiseize Agent
Code Manufacturer Product name
Liquid
Gasket
AA01
AA02
AA03
Loctite
®
Loctite
®
Three Bond
Plastic Gasket 568
Hydraulic sealant
Three Bond 1215
Screw Lock
Agent
AB01
AB02
AB03
Loctite
®
Three Bond
Three Bond
Loctite
®
262
Three Bond 1327
Three Bond 1374
Code Manufacturer Product name
AC01 Loctite
®
Loctite
®
767
(Paste or spray)