Installation guide

5 (Recommended
to allow for
adjustment)
77
130*
B1: Above pinion - Nylon rack
Foundation
plate
Flat bar welded
to foundation
plate and rail
148 - 158
* Includes 3mm clearance
required between rack and pinion
B2: Below pinion - Nylon rack
5 (Recommended
to allow for
adjustment)
148 - 158
Foundation
plate
Raised
foundation
A1: Above pinion - RAZ rack
Foundation
plate
Flat bar welded
to foundation
plate and rail
148 - 158
77
160*
* Includes 3mm clearance
required between rack and pinion
5 (Recommended
to allow for
adjustment)
A2: Below pinion - RAZ rack
148 - 158
Foundation
plate
Raised
foundation
5 (Recommended
to allow for
adjustment)
C2: Below pinion - Steel rack
146
Foundation
plate
Raised
foundation
5 (Recommended
to allow for
adjustment)
5 (Recommended
to allow for
adjustment)
74
174*
C1: Above pinion - Steel rack
Foundation
plate
Flat bar welded
to foundation
plate and rail
146
* Includes 3mm clearance
required between rack and pinion
8B.4. Fit RAZ/Nylon/Steel angle rack as recommended by Centurion
Systems. Use height-adjustment nuts to obtain correct rack and
pinion mesh. Rack can be mounted above or below the pinion to
suit site conditions. Refer to illustration A1, A2, A3, B1, B2 and B2.
8B.2. Fit the mounting studs to
the foundation plate and
secure in place with the
stud locknuts.
8B.3. Position the foundation
plate to allow for the pinion
to be unmeshed from the
rack when the gearbox has
to be removed.
Leave clearance under the
gearbox to allow for the
gearbox to be lowered if
the rack and pinion mesh is
too tight.
Check that
the rack is
just resting
on the
pinion
Level this end
and fix
Level this end
of the rack,
and fix
A gap of 3mm between
the rack and the pinion
must be maintained.
Foundation
plate
Mounting
studs
Stud
locknut
(M10
half-height
nut)
3mm
Lower
3mm
tooth gap