Komatsu WA250PZ-6, WA200PX-6 User Manual

www.Komatsu.com Printed in Japan 200711 IP.SIN (10)

CEN00296-00 Materials and specifications are subject to change without notice

is a trademark of Komatsu Ltd. Japan

HORSEPOWER

WA200PZ-6: 94 kW 126 HP @ 2000 rpm

WA250PZ-6: 103 kW 138 HP @ 2000 rpm

BUCKET CAPACITY

WA200PZ-6: 2.0 m

3

2.6 yd

3

WA250PZ-6: 2.2 m32.9 yd

3

WHEEL

LOADER

WITH

P

ARALLEL Z

BAR L

INKAGE

WA200PZ-6
WA250PZ-6

WA

200
250

OPTIONAL EQUIPMENT

● 3-lever loader control

● AM/FM radio

● AM/FM stereo radio cassette

● Automatic reversible fan

● Boom kick-out

● Bucket teeth (bolt-on type)

● Bucket teeth (tip type)

● Cutting edge (bolt-on type)

● Deluxe suspension seat

● ECSS (Electronically Controlled

Suspension System)

● Emergency steering (SAE)

● Engine pre-cleaner with extension

● Fire extinguisher

● Front fenders

● Limited slip differential (F&R)

● Rear full fender

● ROPS canopy

● Tool kit

● Vandalism protection kit

● Pallet forks for use with coupler,

1220 mm 4'0"

● 3-lever loader control

● AM/FM radio

● AM/FM stereo radio cassette

● Automatic reversible fan

● Boom kick-out

● Bucket teeth (bolt-on type)

● Bucket teeth (tip type)

● Cutting edge (bolt-on type)

● Deluxe suspension seat

● ECSS (Electronically Controlled

Suspension System)

● Emergency steering (SAE)

● Engine pre-cleaner with extension

● Fire extinguisher

● Front fenders

● Limited slip differential (F&R)

● Log grapple

● Rear full fender

● Tool kit

● Vandalism protection kit

● Pallet forks for use with coupler,

1220 mm 4'0"

WA200PZ-6

WA250PZ-6 PARALLEL TOOL CARRIER

Photo may include optional equipment.

W

ALK

-A

ROUND

WA200PZ-6
WA250PZ-6

WHEEL LOADER

WITH PARALLEL Z BAR LINKAGE

WA200PZ-6/WA250PZ-6

W HEEL L

OADER WITH P ARALLEL Z BAR L INKAGE

32

● Parallel movement in both fork

application and bucket application

● Excellent visibility to front attachments

● Large tilt force at maximum boom height

● Large dump angle at maximum boom height

● 2 mode bucket leveler

New Komatsu Parallel PZ Linkage

Increased Reliability

● Reliable Komatsu designed and

manufactured components

● Sturdy main frame

● Maintenance-free, fully hydraulic,

wet disc service and parking brakes

● Hydraulic hoses use flat face

O-ring seals

See page 6.

● Cathion electrodeposition process

is used to apply primer paint

● Powder coating process is used to

apply on main structure

● Sealed DT connectors for electrical

connections

Easy Maintenance

● “EMMS” (Equipment Management

Monitoring System)

● Easy access, gull-wing type engine

side doors

● Automatic Reversible Fan (option)

See page 7.

Photo may include optional equipment.

High Productivity
& Low Fuel Consumption

● High performance SAA4D107E-1 engine (WA200PZ-6)

SAA6D107E-1 engine (WA250PZ-6)

● Low fuel consumption

● Electronically-controlled HST with variable shift

control system

● Variable traction control system

● S-mode

See pages 4 and 5.

Excellent Operator Environment

● HST traction control switch

● Electrically controlled directional lever

● Tiltable steering column

● Low-noise designed cab

● Pillar-less large ROPS/FOPS cab-integrated

● Easy entry/exit, rear-hinged doors

See pages 8 and 9.

Harmony with Environment

● EPA Tier 3 and EU Stage 3A

emission regulations certified

● Low exterior noise

● Low fuel consumption

HORSEPOWER

WA200PZ-6:

94 kW 126 HP @ 2000 rpm

WA250PZ-6:

103 kW 138 HP @ 2000 rpm

BUCKET CAPACITY

WA200PZ-6: 2.0 m

3

2.6 yd

3

WA250PZ-6: 2.2 m32.9 yd

3

4 5

Maximum Dumping Clearance and Reach

The long lift arms provide high dumping clearances and
maximum dumping reach. The operator can even level
loads on the body of a dump truck
easily and efficiently.

Electronically-Controlled HST with Variable Shift
Control System

The operator can choose between first, second, third or fourth
maximum speeds by dialing the speed range selector switch.
For v-cycles, the operator can set the speed control switch to
1 or 2, which provides
aggressive digging, quick
response and fast
hydraulics. For load and
carry, select 3 or 4 which
still provides aggressive
digging but with much
faster travel speed.

The variable shift switch allows the operator to adjust his
machine speed in applications such as confined v-loading.
When in 1, the operator can adjust travel speed using the
variable shift switch to match machine speed and hydraulics
to the distance travelled.

Variable Traction Control System

The tractive effort of the
machine, when traveling at a
low speed, can be reduced by
using the traction control
switch. Combined with the
function of torque
proportioning differentials, this
system exerts the following
effects.

● Facilitates operation on soft ground
where the tires of the machine are apt
to slip.

● Eliminates excessive bucket
penetration and reduces tire slippage
during stockpile loading to improve the work efficiency.

● Reduces tire slippage to extend the life of tires.

Furthermore, the maximum tractive effort can be adjusted in
three stages (one stage for conventional machines) when the
traction control switch is ON. This allows the operator to select
the optimum tractive effort for diversified road conditions.

S-mode

Setting the switch to S-mode allows the machine to get the
optimum driving force for operations on slippery road
surfaces, like snow-removal on snow surface, resulting in
reduced tire slippage and facilitation of the operation.
Unexpected tire slippage
on slippery road surface is
suppressed by controlling
the engine speed and HST
motor when traveling at a
low speed.
(S-mode is effective only in
forward traveling.)

High Performance Engine

Electronic Heavy Duty Common Rail fuel injection system
provides optimum combustion of fuel.
This system also provides fast throttle response to match the
machine’s powerful tractive effort and fast hydraulic response.

WA200PZ-6 SAA4D107E-1 Engine

Net: 94 kW 126 HP

WA250PZ-6 SAA6D107E-1 Engine

Net: 103 kW 138 HP

Low Emission Engine

This engine is EPA Tier 3 emission regulations and EU Stage
3A emission regulations certified, without sacrificing power or
machine productivity.

Low Fuel Consumption

The high-torque engine and Hydrostatic Transmission (HST)
with maximum efficiency in the low-speed range provide low
fuel consumption.

Eco Indicator

The eco indicator will help an operator to promote energy
saving.

Electronically-Controlled HST Using a 1-Pump,
2-Motor System

● The 1-pump, 2-motor system allows for high-efficiency
and high tractive effort. Engine power is transmitted
hydraulically to a transfer case, then manually out to the
differentials and out to the four driving wheels.

● HST provides quick travel response and aggressive drive
into the pile. The variable displacement system
automatically adjusts to the tractive effort demand to
provide maximum power and efficiency.

● Full auto-shifting eliminates any gear shifting and kick­down operation to allow the operator to concentrate on
digging and loading.

● When high drive torque is needed for digging, climbing or
initiating movement, the pump feeds both motors. This
combination makes the loader very aggressive and quick.

● Under deceleration, the HST system acts as a dynamic
brake on the mechanical drive system. The dynamic
brake can hold the loader in position on most workable
slopes. This can be an advantage in stockpiling and ramp
loading.

● As the machine moves and gains ground speed, the
torque demand decreases and the low speed motor is
effectively removed from the drive system by a clutch. At
this point, the flow is going to the high-speed motor and
the low-speed motor is not causing a drag on the
system.

● An inching pedal gives the operator excellent
simultaneous control of his travel and equipment
hydraulic speeds. By depressing the inching pedal, drive
pump flow to the motors will decrease, reducing ground
speed and allowing the operator to use his accelerator to
increase flow to his equipment hydraulics. Depressing
the inching pedal further will activate the service brakes.

Eco indicator

WA380-6

H

IGH

P

RODUCTIVITY AND

L

OW

F

UEL

C

ONSUMPTION

WA200PZ-6
WA250PZ-6

WHEEL LOADER

WITH PARALLEL Z BAR LINKAGE

WA200PZ-6/WA250PZ-6

W HEEL L

OADER WITH P ARALLEL Z BAR L INKAGE

Accelerator Pedal Sensitive HST
Control

Finely-tuned HST control according to
the accelerator pedal angle reduces
shocks and allows smoother traveling
and better energy-saving operation.

Max. Traction Switch

Max. traction switch is located on the work equipment control
lever. When traction control switch is at ON position or S­mode is selected, pushing this switch cancels the setting of
the traction control temporarily and increases the tractive
effort to its 100 % value. Then pushing the max. traction
switch again or operating the F/R lever returns the tractive
effort to the set value
automatically. This
switch is useful for
operations such as
piling up work where
large tractive effort is
required temporarily.

WA200PZ-6 WA250PZ-6

Dumping

2810 mm 9'3" 2820 mm 9'3"

Clearance
Dumping 1090 mm 3'7" 1090 mm 3'7"
Reach

(2.0 m32.6 yd3bucket with B.O.C.) (2.2 m32.9 yd3bucket with B.O.C.)

Transfer case

Low speed
piston
motor

Engine

Piston Pump

High speed
piston
motor

To differentials

1st

2nd

3rd

4th

0

Tractive effort

0

Adjust the machine speed using
the Variable shift control system

4km/h

13km/h

13km/h

20km/h

Variable range of travel speed

4

Travel speed

13

34.5km/h

(km/h)

Max: Traction control switch is OFF.
(Max. tractive effort)

Max. tractive effort
can be adjusted in
3 stages when the
traction control
switch is ON.

Tractive effort

0

Travel speed

Tractive effort

0

S-mode:
Reduces the tractive effort
when traveling at a low speed

Travel speed

(i)

Tractive effort

0

Travel speed

Maximum tractive effort
(100% tractive effort)

(i)

(ii)

Set tractive effort
(When traction control is
"ON" or "S-mode" is selected)

Tractive effort changes between
(i) and (ii) each time the max. traction
switch is pushed.

Tractive effort returns to the set value
when the F/R lever is operated.