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Transmission, Hydraulic cycle time, Service refill capacities – Milton CAT 988H User Manual

Page 17: Buckets, Engine

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17

988H Wheel Loader specifications

Operating Specifications

Rated Payload

11.4 tonnes

12.5 tons

Operating Weight

49 546 kg

109,249 lb

Rated Payload – Standard

11.4 tonnes

12.5 tons

Transmission

Converter Drive – Forward 1

6.7 kph

4.2 mph

Converter Drive – Forward 2

11.8 kph

7.3 mph

Converter Drive – Forward 3

20.8 kph

12.9 mph

Converter Drive – Forward 4

36 kph

22.3 mph

Converter Drive – Reverse 1

7.6 kph

4.7 mph

Converter Drive – Reverse 2

13.5 kph

8.4 mph

Converter Drive – Reverse 3

23.7 kph

14.7 mph

Direct Drive – Forward 1

Lock-up disabled

Direct Drive – Forward 2

12.3 kph

7.7 mph

Direct Drive – Forward 3

21.9 kph

13.6 mph

Direct Drive – Forward 4

38.6 kph

24 mph

Direct Drive – Reverse 1

7.9 kph

4.9 mph

Direct Drive – Reverse 2

14.1 kph

8.8 mph

Direct Drive – Reverse 3

25.1 kph

15.6 mph

• Travel speeds based on two percent rolling resistance

and 35/65-33 tires.

Hydraulic Cycle Time

Raise

9.4 Seconds

Dump

2.4 Seconds

Lower Float Down (Empty)

3.8 Seconds

Total Hydraulic Cycle Time

15.6 Seconds

Service Refill Capacities

Fuel Tank

712 L

188 gal

Cooling System

103 L

27.2 gal

Crankcase

60 L

15.9 gal

Transmission

70 L

18.5 gal

Differentials and Final Drives

186 L

49 gal

– Front

Differentials and Final Drives

186 L

49 gal

– Rear

Hydraulic System (factory fill)

470 L

124.2 gal

Hydraulic System (tank only)

267 L

70.5 gal

Buckets

Bucket Capacities

6.3 m

3

–7.0 m

3

8.2 yd

3

–9.2 yd

3

Max. Bucket Capacity

7 m

3

9.2 yd

3

Engine

Engine Model

Cat C18 ACERT

®

Gross Power

414 kW

555 hp

Flywheel Power

373 kW

501 hp

Net Power – EEC 80/1269

373 kW

501 hp

Net Power – ISO 9249

373 kW

501 hp

Gross Power – ISO 3046-2

388 kW

520 hp

Bore

145 mm

5.7 in

Stroke

183 mm

7.2 in

Displacement

18.1 L

1,104.5 in

3

• These ratings apply at 1,800 rpm when tested under the

specific standard conditions for the specified standard.

• Power rating conditions based on standard air conditions

of 25° C (77° F) and 99 kPa (29.32 in Hg) dry barometer,
using 35° API gravity fuel having an LHV of 42 780 kJ/kg
(18,390 Btu/lb) when used at 30° C (86° F) [reference a fuel
density of 838.9 g/L (7.001 lb/gal)].

• Net power advertised is the power available when the

engine is equipped with alternator, air cleaner, muffler
and hydraulic fan drive.

• No derating required up to 3048 m (10,000 ft) altitude.

• Direct-electric, 24-volt starting system with 100 amp

alternator and four high performance maintenance-free
batteries with 1,000 cold cranking amps.

Gross

Net

1600

1800

2000

1400

1000

1200

3000

2213

2066

1919

1771

1624

1476

1328

2800

2600

2400

2200

2000

1800

450

400

350

300

250

200

235

230

220

225

215

210

205

Engine Speed (RPM)

603

536

469

402

335

268

0.385

0.377

0.369

0.361

0.344

0.353

0.336

Engine Power (Bhp)

Engine Torque (ft

lb)

Engine Torque (N

m)

Engine Power (kW)

BSFC (lb/Bhp-hr)

BSFC (gm/kW-hr)