Arjo Enterprise E8000X, Service Manual

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Enterprise E8000X Service Manual Servicing Instructions
Page 35
8 Castors - Replacement
This section describes how to replace the castors.
Reference is made throughout this section to Figure 5 on page 36 and Table 3 on page 37.
8.1 Removal
To remove the castors:
8.1.1 Position the bed so that all the castors are lined up in the same direction and apply the brakes.
8.1.2 On the right hand side of the bed remove the socket head screw (Fig 5, Item 12) from the
brake pedal (Fig 5, Item 3A)/(Fig 5, Item 4A) or brake link moulding (Fig 5, Item 5)/
(Fig 5, Item 6) above the faulty castor. Pull the brake pedal or brake link moulding off the brake
bar (Fig 5, Item 15) with the link fabrication attached.
8.1.3 Remove the brake pedal or link moulding from the opposite side of the bed.
8.1.4 Push the brake bar into the base fabrication until it is just clear of the faulty castor; take care
not to push it in too far as it may be difficult to retrieve.
8.1.5 Use the hoist to lift the end of the bed with the faulty castor by about 15cm (6 in.). Use suitable
blocks or stands to support the raised end of the bed.
8.1.6 Note the orientation of the castor. Remove two button head socket screws (Fig 5, Item 11) and
two Nord-Lock washers (Fig 5, Item 10) to release the castor from the base fabrication.
8.2 Installation
To install the castors:
8.2.1 Use an 11mm A/F Allen key (Tool No. 3) to position the castor operating cam in the "brake"
position, i.e. the castor cannot rotate or swivel.
8.2.2 Install the castor (Fig 5, Item 7), (Fig 5, Item 8) or (Fig 5, Item 9) into the mounting tube in
the base fabrication. Make sure it is orientated in the same direction as the previously removed
castor.
8.2.3 Secure the castor with two Nord-Lock washers (Fig 5, Item 10) and button head socket screws
(Fig 5, Item 11). Remove the blocks or stands and lower the bed to the floor.
8.2.4 Push the brake bar (Fig 5, Item 15) back through the base fabrication from the other side so
that it engages the operating cam on the new castor.
8.2.5 Refit the brake pedal (Fig 5, Item 3A)/(Fig 5, Item 4A) or brake link moulding (Fig 5, Item 5)/
(Fig 5, Item 6) on both sides of the bed.
8.2.6 On the other side of the bed, slide the brake pedal or brake link moulding over the spigot on
the brake link fabrication (Fig 5, Item 13) and brake bar (Fig 5, Item 15). Check that the brakes
and steering operate correctly.
Take care to ensure replacement castors are the same type (brake/free or
brake/track) and wheel size as the old one.
The castors fitted to these beds are not adjustable. If the braking or steering
function is defective, replace the castor as described above.