Specifications

40
4. Drive system
Type
Front wheel drive, axle body and frame fastened together, fully floating type
Forklift
truck
2t, 2.5t
3t
3.5t
Single tyre (2) Double tyres (4)
Dual tyre
Tyre size
7.00-12-12PR
28×9-15-12PR
28×9-15-14PR
Rim size
5.00S-12D
7.00WFB-15
7.00WFB-15
Tyre
pressure
0.84MPa
0.80MPa
Notice: For the difference of manufacturers’ standard, please charge the
tyre according to the pressure specification of actual tyres.
4.1 General description
The drive axle mainly consists of the housing, the wheel hub, the half shaft and
the brake unit. (See Fig4.1) The housing is an integral casting body. The tyre with the
rim is fixed to the hub with studs and nuts. The power is transmitted to the half shaft
through the differential and drives the front wheels through the hubs. Each hub is fixed
on the axle housing with two tapered roller bearings, so that the half shafts bear only
torque transmitted to the hubs. There are oil seals to prevent water and dust from
entering and oil leakage inside the hub.
4.2 Procedure for hubs remounted
(1) Fill the chamber of wheel hub with 1/3-2/3 cubage lithium base grease (about
100 cc), then fit the hub on the shaft. (Fig 4.2)
(2) Screw down the adjusting nut with a torque for about 1kg.m and then loosen it
for 1/2 turn.
(3) Put the spring balance up on the bolt to measure the hubs’ starting torque.
When the starting torque arrives to the specified value, lock the nuts slowly.
Starting torque: 5 to 15 kg.m (Fig4.3)
(4) Install the lock plates and lock nuts, after that pull the lock plates up to lock the
bolts.
(5) Wheel assembly (Fig4.4)
Install the inner rim and gasket inside the outer rim and assemble the outer rim