Trimax Snake User manual

1
SPARE PARTS
INSTRUCTIONS #79
Date Created: 14/08/2020
Product: Snake
Title: Wheel Bearing Replacement 416-860-460
SAFETY! Before attempting to make any adjustments or carry out maintenance on the mower, review
the hazard identification table (section 3a of your Operator Manual) and take all necessary precautions.
The following process shows how to
replace the wheel bearing on a Snake
mower.
Position mower on flat even ground.
Note:
It is recommended to have wings
down but is not essential.
Loosen Wheel Nuts while the mower
is on the ground.
Note:
The mower decks have been removed
from images for clarity.

2
Raise mower up off the ground using
a jack or crane.
Note:
Positioning a block under the chassis
for safety is recommended.
Fully remove all Nuts and the Wheel
from the hub.
Remove the Bearing Buddy.
Note:
Some mowers may use a grease cap.

3
Remove the Split Pin.
Remove the Castle Nut.
Remove the Washer.

4
Slide off the full Hub Assembly.
Move to a workbench.
When fully replacing the Hub and
Bearings, skip the following steps
around replacing the Bearing Race.
Complete Hub (416-860-460)

5
When only replacing the Bearings and
reusing the old Hub, then the Bearing
Race should be replaced at the same
time.
Bearing Kit (416-860-470)
Remove the old Bearing Race in the
Wheel Hub from both ends.
This can be done by knocking the
Bearing Race out from the opposite
end it is positioned.
It is recommended to use a bearing
press or a local engineering shop to
press the Bearing Race into the hub.
If you have access to this tooling use
a drift as shown to locate the Bearing
Race.
IMPORTANT:
Bearing Race must be sitting square
to the Hub when pressed in place.

6
Repeat for the Bearing Race in the
opposite end of the Hub.
If you have a bearing greasing tool,
then use this to fully grease the
Bearings before assembling the Hub.
If you do not have a bearing greasing
tool you can still grease the bearings
by hand.
Ensure too slowly massage the grease
into each roller so the bearing is fully
covered.
Once finished cover the bearing in
extra grease.

7
Grease the Bearing Race in the Hub.
Place the LARGE Tapered Roller
Bearing (401-842-830) in the race.
Apply another coat of grease to the
LARGE Tapered Roller Bearing
Position the Seal Insert (416-860-480)
Gently tap the Seal Insert into place.
See inset.
IMPORTANT:
Ensure the seal insert is fitted
SQUARELY!
Turn the Hub over so that the Wheel
studs face UPWARDS.
Using the same method as the Large
Tapered Roller Bearing Grease the
SMALL Tapered Roller Bearing
(401-842-820) and Bearing race.

8
Fit the Washer from the kit
(416-860-480) over the Axle.
Fit the Seal from the kit
(416-860-480) over the Axle.
Offer up the Hub Assembly to the
Axle.
Slide onto the Axle as far as possible
by hand.

9
Fit the Washer (308-200-064) over
the Axle thread.
Fit the Castle Nut (416-842-200) onto
the Axle thread.
Torque the Castle Nut to 68Nm
WHILE ROTATING THE HUB.
IMPORTANT:
Do not use an impact gun for this step
or bearing/hub damage may occur.
Back the Castle Nut off one full turn.
Re-torque the Castle Nut back up to
14Nm WHILE ROTATING THE
HUB.
IMPORTANT:
Back the Castle Nut off 1/6 to 1/4 of
a turn until the hole for the split pin
is aligned.
Ensure the hub turns freely without
sideways play.

10
Insert the Split Pin (201-447-000)
through the Castle Nut and the hole in
the end of the Axle Stub.
Bend the Legs of the Split Pin around
the Nut.
Note:
The Short Leg of the Split pin may
require trimming with Snips to clear
the Washer and Bearing.
Fit the Bearing Buddy (416-000-098).
Gently drive home until fully seated
in the Hub.
IMPORTANT:
Fill the Bearing Buddy completely
with grease before fitting.
Some mowers may use a grease cap.

11
Fit the Wheel to the wheel hub.
Nip up the Wheel Nuts to secure
using the pattern shown.
The Tapered ends of the Wheel Nuts
face the Wheels.
Note:
The Wheel Nuts will be torqued once
the Chassis is lowered to the ground.
Remove the safety block from under
the mower.
Lower mower to the ground and
remove jack.
1
2
3
4
5

12
Torque ALL Wheel Nuts to 110Nm
using the pattern shown.
This process is now complete.
1
2
3
4
5