Countax B MK4 Series Operator's Manual page 45

Persistent flat tyres
Like all garden machinery, the most common cause of
punctures are THORNS! Blackthorn, Hawthorn and Rose
are usually at the bottom of the problem and will puncture
any tyre not fitted with very expensive guards. There are
less expensive ways to overcome this problem and it is
advisable to check and avoid these possible causes:
The rim of the wheel has been damaged causing the seal
on the tube-less tyre to be broken. There are two solutions:
1. If the damage is significant it is necessary to order a
new wheel from your dealer.
2. If you have Hawthorn, Blackthorn or Wild Rose in
your garden – this will puncture any tyre. It makes
sense to check any area you intend to cut or drive
over and to remove any branches.
If the tyres spin or lose grip, check:
1. That all tyres are inflated to their correct pressures
(See specification page).
2. Are you going too fast for the conditions?
Removal of front wheel (2WD ONLY)
1. Apply Parking Brake.
2. Place chocks under the wheels that are to remain on
the ground.
3. Remove the plastic hubcap.
4. Use a 19 mm socket/spanner to loosen the wheel
nut whilst on the ground – DO NOT REMOVE THE
WHEEL AT THIS STAGE.
5. Place a jack under the front axle at the jacking point
circled in fig. 86. Jack the tractor up until both front
wheels are well clear of the ground.
6. Remove the wheel nut and washer and keep safe.
7. Taking care not to dislodge the tractor from the jack,
pull the wheel off.
When the tyre is repaired, replace the wheel preferably
using a new M12 Nyloc nut. Tighten to a torque setting of
5.25kg.m (38lb/ft). Check to ensure wheel turns freely.
Removal of rear wheel (fig. 88 & 89)
1. Apply Parking Brake.
2. Place chocks under the wheels that are to remain on
the ground.
3. Loosen the four wheel nuts (fig. 89) – DO NOT
REMOVE THE WHEEL AT THIS STAGE.
4. REAR WHEEL ONLY - Place a jack under the jacking
point shown in fig. 88 (on the side appropriate to
the wheel that is to be removed). Jack the tractor up
until the wheel to be removed is clear of the ground.
5. FRONT WHEEL 2WD - Place jack at side of chassis
under the chassis rail behind front wheel on side
appropriate to removal wheel.
6. Remove the wheel nuts using a 19 mm spanner
/ socket. Once removed, keep safe and
remove the wheel.
Troubleshooting (Tyres & Wheels)
(fig. 86 & 87)
Wheel Nut
7. When replacing the wheel re-tighten the nuts to
5.25kg.m (38lb/ft).
Page 45
fig. 86
fig. 87
fig. 88
fig. 89
Hub Cap