15
CASTOR SAFETY & MAINTENANCE
When inspecting a castor in order
to determine its serviceability, pay
particular attention to the head
swivel bearing (compare to a new
one if possible) and the boss/rivet
which goes through the centre
of the swivel bearing and which
clamps the assembly together.
Swivel bearing head
should feel free to
rotate and not loose
Underside of Castor
CASTOR SAFETY & MAINTENANCE
In order to ensure the castors are maintained in serviceable and safe
condition, regular inspection is required, especially where arduous
conditions are known to be involved or there is a suspicion of misuse or
abuse. The other key element to ensure is in safe serviceable condition, is
the castor fixing bolt, the condition of which can usually be determined
from the condition of the castor bracket.
The castor is highly rated for the application so if visible distortion is
evident a significant impact will have occurred and under these conditions
the castor and fixing must be replaced.
Typical signs of impact which would require castor and fixing replacement:
Foot pedal distortion as a result of a significant impact; it is
likely the top plate and bearing will be distorted as well.
Mounting plate distortion as a
result of a single significant impact
or multiple lower level impacts.
Even if the rest of the castor is
in good condition, it must be
replaced.
Castor Fixing Bolt (3/4 UNC):
Torque - 120 Nm
Castor Axle Bolt:
Torque - 40 Nm
Castor mounting bolt
Important.
These instructions apply to all machines FROM
serial no. 26953115C
It may be thought feasible to repair the castor in a number of these
instances, but serious structural damage will have occurred to the head
bearing and castor assembly as well as possibly damage to the main
mounting bolt.
