The inner race of the rear bearing (4) will
slide of off the shaft. Be careful that it does
not fall off. Alternatively, prise out the front lip
seals (23) first with a sharp tool. Take care
not to damage the bearing housing or
journals of the shaft during this operation.
Ultima
only:
The aluminium and
stainless steel components of the
Ultima bearing carrier are machined
as an assembly and should never be
dismantled.
The outer races of the bearings (4 & 5) can
be pulled out of the of the housing (1) using
your fingers.
To remove the inner race of the front bearing
a press will be required.
Re-assemble in the reverse order, checking
and re-adjusting the bearing pre-loads. (See
section 6.18).
6.18 BEARING SET-UP AND
PRE-LOAD
Each shaft is supported on 2 taper-roller
bearings (front: 5) (rear: 4) which are pre-
loaded to prevent any end-float (sideways
movement) of the shafts (24 & 25).
If any movement is detected in either shaft
(side to side or axially) new bearings must
be fitted (see section 6.17) and correctly
pre-loaded.
Assembly of the shafts is as follows:
Safety: Bearings inner races require heating
to 110°C (230°F).
Protective gloves are
essential.
a)
USE GLOVES: Heat only front inner
races of bearings (5) and assemble
onto the shafts (24 & 25) making sure
they are pressed tight up against the
shoulders and are the correct way
round. (See figure 22)
b)
Slide both front (5) and rear (4) outer
races into the bearing housing. (See
figure 23)
Note:
At this stage do NOT
put additional oil on bearings.
c)
Place driven shaft (25) into the bearing
housing (1) from the front and slide the
inner race of front bearing (4) onto the
shaft until front and rear inner bearing
races are in light contact with their
outer races. Fit the gear drive key (28),
gear (6), tab washer (7) and gear nut
(8). Tighten the gear nut (8) by hand to
hold the assembly in place, taking-up
any end float. It may help to warm the
inner race of the rear bearing to ease
fitment onto the shaft.
Page 36
Hy~Line
and
Ultima
Lobe Pumps
07/03
Figure 22
Inner-Ring Fitment
Figure 21
Removing Shafts
Summary of Contents for Hy-Line
Page 41: ...07 03 Page 39 Hy Line and Ultima Lobe Pumps 7 00 MODEL NUMBER BUILD CODE...
Page 43: ...07 03 Page 41 Hy Line and Ultima Lobe Pumps 8 01 PARTS LIST...
Page 44: ...Page 42 Hy Line and Ultima Lobe Pumps 07 03 8 01 PARTS LIST CONTENTS OF KITS...
Page 45: ...Page 43 Hy Line and Ultima Lobe Pumps 07 03 8 02 Hy Line EXPLODED DIAGRAM...
Page 46: ...07 03 Page 44 Hy Line and Ultima Lobe Pumps 8 03 Ultima EXPLODED DIAGRAM...
Page 47: ...07 03 Page 45 Hy Line and Ultima Lobe Pumps 8 04 Hy Line 3 Size SECTIONAL VIEW...
