Snappi System User Manual
Document No: 053-05 v38
Page 17 of 76
June 2022
Snappi System User Manual.doc
How to lock the front castors:
Fig 4.2E.1
First lift the head of castor locking pin
turning it until the head engages with the
slot in the body of the castor locking pin
(see Fig 4.2E.1).
Note Fig 4.2E.1 shows
the castor locking pin in an open
position to ensure the head and body
are clearly visible for labelling.
Then rotate the front castor until the pin
engages with the hole. The castor should
now be locked in a forward position (see Fig
4.2E.2).
Note: front locking castors are
generally used on uneven/rough terrain
so for day-to-day use, when the castors
are locked, it may be more difficult to
change direction.
Fig 4.2E.2
How to unlock the castors:
Pull the head of the castor locking pin up and turn it half a turn and release so the head is
supported by the castor locking pin body (see dig 4.2E.1).
4.3 Fitting the seat to the chassis
The seat incorporates an Interface system, and includes a 2-stage latch that comprises a
main latch and a second safety latch that prevents accidental release of the seat from the
chassis.
The safety catch must be correctly set before the main catch can be operated:
Castor Locking
Pin (in a locked
position)
Head of Castor
Locking Pin
Body of Castor
Locking Pin
Castor Locking
Pin (in an open
position)