MASSEY FERGUSON CENTORA 7282 Workshop Service Manual page 34

0. Introduction - Specifications
Securing and locking nuts and bolts
To prevent nuts and bolts working loose, use retaining
washers, lock plates and split pins. In addition to these
mechanical devices, use locking paste, e.g. Loctite.
In order to work effectively, the locking plate has to be
bent down over the edge of the object. Bend the other
end up against one of the surfaces of the nut or bolt head.
New locking plates must always be fitted in housings
with moving parts. When fitting lock washers on alumin-
ium housings, insert a spring washer between the lock
washer and the housing.
Note: Retaining washers (Grower, star washer, spring
washer, etc.) must never be inserted under nuts or screw
heads that have to be tightened to a specified torque.
Note: When using locking paste such as Loctite, the
parts must always be degreased before the paste is
applied.
Lubricating rings and tight fit
Do not fit the rings with just a hammer. Use a suitable
fitting tool together with a hammer or, even better, a
press, if possible.
When using a press, make sure that the pressure is
exerted in the same direction as the drilled hole. If there
is an oiling hole in the lubricating ring, it must line up with
the hole in the adjoining part.
Where one part fits tightly inside another, lubricate both
surfaces. Tapered parts must be fitted dry. Check the
tapered surfaces for impurities and burrs before fitting.
They must be completely dry.
Fitting bolts in non-through holes
Bolts of the right length must be used. If the bolt is too
long, it will hit the base before the head is in contact with
the part to be held: this will cause the threads to be dam-
aged.
If the bolt is too short, it may not have enough thread
engaged to hold the part in place and so will not work
effectively.
20
Right and wrong use of lock plates
Fig. 5
Right and wrong fitting and bending of locking
Fig. 6
Workshop Service Manual for CENTORA 7280-7282 Combine Range - EN_D3111800M2
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