KS-E509

These specifications are subject to change without notice.Illustrations and photos show the standard models, and may or may not includeoptional equipment, accessories, and all standard equipment.Before use, go through Operator's Manual for proper operation.

Head Office : 5-1, Koraku 2-chome, Bunkyo-kuTokyo 112-8563, Japan

Telephone : 81-3-3830-8050Facsimile : 81-3-3830-8204URL : www.hitachi-c-m.com

Hitachi Construction Machinery Co., Ltd.

05.12 (SA / HP, GT3)

Printed in Japan

Hitachi applied all its excavator expertise in the design of the new zero-tail mini excavators ZAXIS27U. This machinemeets customer demands for operating comfort, enhanced safety and easier maintenance. The series complies with thelatest emission regulations, noise suppression standards and ROPS/FOPS standards. Operators have superior controlover the machine from the relaxed seat. Owners enjoy a lower cost of ownership due to the machine’s durability and easymaintenance.

Compact yet Powerful The Hitachi-developed rubber crawlersare highly durable, featuring a steel-cored structure that protects shoe edgesfrom being damaged even when ridingon curbs.

New-Structure Rubber Crawlers

The flat-bottom bucket is provided stan-dard to minimize bucket bottom wear.Wide wear plates are welded to thebucket bottom for increased durability.

Durable Flat-Bottom Bucket

A single large swing pin is used to elimi-nate jerking.

Single Swing Pin

The field-proven HN bushing, a Hitachioriginal, is utilized at each front pin jointo reduce jerking and servicing.Lubricating interval is a long 500 hours

Job-Proven HN Bushings

Oil

Pin

HN Bushing The HN bushing, another example ofinnovative technology developed byHitachi, features long life and high dura-bility. High-viscosity oil is vacuumimpregnated in sintered high-hardnessmetal. During operation oil oozes comefrom the pores of the bushing into theclearance between pin and bushing forself-lubrication.

Conventional

Rubber

Steel core

Curb

Force

Crack

New structure

Rubber

Steel core

Curb

Force

High-hardness rubber

Acting force is diverted to reduce crack.

During high-speed travel, when theload is increased for steering for exam-ple, travel speed is lowered automati-cally and smoothly. When the load isdecreased, travel speed is resumedaccordingly.

Automatic Travel Speed Control at High Speed (Standard)

The newly developed box-section frameis adopted, combining low weight andhigh durability. The enlarged counter-weight and weighted undercarriage helplower the center of gravity and increasestability.

Enlarged Counterweight and Weighted Undercarriage

Enlarged counterweight

D-section frame

Box-section frame

When using a heavy front attachmentsuch as a fork grapple, the additionalcounterweight is easily mounted forhigher stability.

Additional Counterweight (Option)

Suitable for a Variety of Applications

Wrist rest Partially Reinforced Bucket12V outlet 2-side reinforced arm4-side reinforced arm

Pad crawler shoes Piping for attachments

Sideplate

WeldingBucket bottom

Wear plate

2 3

NS (New Standard) key TEN key lockElectrical key (Immobilizer)

Both canopy and cabin conform to the latest ROPS, FOPS and TOPS standards. Theseprotect the operator in case of roll-over; tip-over and from falling objects. The seatbelt protects the operator as well. The operator’s cabin and canopy, complying with the international standards, aremounted to protect the operator in the case of tipping.

ROPS/FOPS Cabin and Canopy

The cabin rests on 4 shock-absorbingrubber mounts to ensure comfortableoperation.

Rubber Mounted Floor

Compact yet ample-capacity air condi-tioner is provided standard. The full-360° rotatable air outlet also serves as adefroster, maintaining operator comfortall the year round.

Air Conditioner (Cabin Version)

The door opens in two steps and has increasedwidth of 610 mm, allowing easy entry.

Folded Large Cabin Door

The Sun visor, an integral part of theroof, gives better upward visibility. Theoverhang roof keeps the operator’sknees dry in light rain.

Improved Visibility with Roof Sun Visor (Canopy)All operations—front, swing, travel andblade—can be shut off by locking thepilot control shutoff valve. This effec-tively prevents accidental lever control.

Pilot-Control Shut-Off Lever

The engine can start only when the pilot control shutoff lever is locked, This is calledthe neutral engine start system. This eliminates unexpected lurching when the enginesuddenly starts when unconscious touching the control lever.

Neutral Engine Start System

The swing parking brake and travel parking brake are both provided standard forenhanced safety.

Swing/Travel Parking Brakes (Standard)

Miscellaneous Devices

Seat backrest box Drink can holder Seat belt

Ashtray (cabin) Tool box (canopy) Slip-resistant tape

While traveling with foot pedals, theoperator can control the front attach-ment with hands. The foot pedals, whennot in use, can be folded away forincreased foot space.

Ergonomic ControlsConveniently Located Foot Pedals

The operator can always checkmachine conditions at a glance. Fuellevel, coolant temperature and the statusof various other indicators are clearlydisplayed on the large LCD monitorplaced in the front right position.

Easy-to-Read Monitor

Various switches are located withinreach of the operator for convenience ofthe operator without need for reposi-tioning.

Functionally Located Switches

Operator Comfort and Safety

4 5

The engine cover can slide up and downfor quick servicing even in confinedspace. No more swing-open cover thatobstructs maintenance and servicingjobs. The right side cover swings openfor a quick battery check.

Simplified Daily Maintenance

The X-beam track frame is rounded forsmooth mud removal. One-sided slopeon the side track frame promotes mudsliding-off, minimizing mud packingproblem. This shortens machine wash-ing time and reduces disposal costs,too.

Uses Tracks Promoting Easy Mud Removal

The cabin floor can be tilted up for easy,quick servicing even in the case of anemergency. The floor can be tilted up to50° to allow the operator to work underthe cabin floor. It also gives directaccess to the swing mechanism andstarter motor behind the engine locatedunder the cabin floor. This designreduces inspection and maintenancetime.

Tilt-Up Floor

The ZX27U-2 share the same device layout for easy, efficient inspection and replace-ment. Inspection points are concentrated for quick daily maintenance.

Easy Maintenance

The machine frame is reinforced with aD-shaped frame that protects againstdamage and impact by obstructions.

Reinforced D-Shaped Frame

A steel cover is utilized for tough opera-tion, allowing easy repair if damaged.The steel cover is durable, recyclableand economical.

Easy to Repair Steel Cover

Split-type front hoses are jointed at themachine cover ports and the back of theboom for easy replacement.

Split-Type Front Hoses

Parts and ServiceOver the years Hitachi gained experience in one of

the most competitive service markets in the world:

Japan. Using our know-how in dealing directly with

customers, we have created a worldwide support

system that is highly effective and efficient. More

than 150 dealers all over the world have highly

trained technicians and high parts availability.

Contact your Hitachi dealer for detailed information

about service programs available for your area and

machine. Not all services and/or programs are

available in every region or for all machines.

To get the most out of your machine, you need

genuine Hitachi parts. In most cases there is a

Hitachi dealer in your area that has the required

part in stock. Hitachi minimizes the delivery time for

any part by connecting its 4 parts depots in Japan,

Singapore, The Netherlands and North America by

a on-line system sharing information on the number

and type of available parts. In this way you are

ensured that your parts are shipped as efficiently

and quickly as possible.

Swing motor

Control valve

Alternator

Starter motor

Pilot filterPump

MufflerEngine

Fuel filterWater separator

Air cleaner

Fuel tank

Battery

Hyd. Oil tank

Reserve tank

Oil cooler

Radiator

Engine oil supply

6 7

8 9

SPECIFICATIONS

ENGINE SWING MECHANISM

UNDERCARRIAGE

SERVICE REFILL CAPACITIES

HYDRAULIC SYSTEM

CONTROLS

FRONT ATTACHMENTS

Model .......................................................................... Yanmar 3TNV88Type ................................................ Water-cooled, 4-cycle, 3-cylinder

direct injection type diesel engineRated power

SAE J1349 ............................ 19.7 kW (26.8 HP) at 2 200 min-1(rpm) DIN 6271 ............................... 19.7 kW (26.8 PS) at 2 200 min-1(rpm)JIS D1005 ............................. 19.7 kW (26.8 PS) at 2 200 min-1(rpm)

Maximum Torque .................................................105 N.m (10.7 kgf.m)at 1 320 min-1(rpm)

Bore & Stroke .....................................................................88 x 90 mmPiston displacement .................................................................. 1.642 L Battery ......................................................................... 1 x 12 V, 55 Ah

High-torque, axial piston motor with planetary reduction gear. Swing circle is single-row, shear-type ball bearing with induction-hard-ened internal gear. Internal gear and pinion are immersed in lubricant.Swing parking brake is spring-set/hydraulic-released disc type. Swingshockless valve built in swing motor absorbs shocks when stoppingswing, ensuring smooth stops.

Swing speed ........................................................... 9.1 min-1 (9.1 rpm)

The proven 3-pump system and arm regenerative circuit have beenimproved to make combined operations and fine control easier andsmoother.

Main pumps ................. Two variable displacement axial piston pumpsMaximum oil flow. .......................................................2 x 35.2 L/min

Third pump ................................................................. One gear pump Maximum oil flow ..............................................................17.6 L/min

Pilot pump ................................................................... One gear pump Maximum oil flow ............................................................... 9.9 L/min

RELIF VALVE SETTINGSMain pumps circuit ............................................................... 24.5 MPa Third pump circuit ................................................................ 20.6 MPa Pilot circuit .............................................................................. 3.9 MPa

HYDRAULIC CYLINDERSHigh-strength piston rods and tubes. Cylinder cushion mechanismsprovided in boom raise, arm roll-in and roll-out circuits to absorbshocks at stroke ends.

DIMENSIONS

Quantity Bore Rod diameter StrokeBoom Canopy 1 75 mm 45 mm 567 mmBoom Cabin 1 75 mm 45 mm 553 mmArm 1 65 mm 40 mm 549 mmBucket 1 55 mm 35 mm 437 mmBoom swing 1 75 mm 40 mm 525 mmBlade 1 80 mm 45 mm 135 mm

TRACKSTractor-type undercarriage. Welded track frame using carefully selectedmaterials. Side frame welded to track frame.

NUMBERS OF ROLLERS ON EACH SIDEUpper roller ........................................................................................ 1Lower rollers ....................................................................................... 4

TRAVEL DEVICEEach track driven by a high-torque, 2-speed axial piston motor throughplanetary reduction gear, allowing counter-rotation of the tracks. Travel shockless relief valve built in travel motor absorbsshocks when stopping travel, ensuring smooth stops.

Travel speeds (rubber shoes) ................................. High: 0 - 4.5 km/hLow: 0 - 2.6 km/h

Travel speeds (grouser shoes) ................................. High: 0 - 4.4 km/hLow: 0 - 2.5 km/h

Gradeability ........................................... 30 degrees (58%) continuous

BACKHOE BUCKETSISO 7451 Width Front Attachmentcapacity Without side cutters With side cutters No. of teeth Weight

1.17 m arm 1.47 m arm

0.05 m3 300 mm 350 mm 3 53 kg A A0.06 m3 350 mm 400 mm 3 55 kg A A0.07 m3 400 mm 450 mm 3 58 kg A A0.08 m3 450 mm 500 mm 3 61 kg A B0.09 m3 500 mm 550 mm 4 66 kg B B0.10 m3 550 mm 600 mm 4 70 kg B CArm crowd force 15.5 kN 13.4 kNBucket digging force 22.6 kN 22.6 kN

A: General digging B: Light-duty digging C: Loading

Hydraulic pilot control levers for all operations.

litersFuel tank ..................................................................................... 40.0Engine coolant ............................................................................... 5.2Engine oil ....................................................................................... 7.2Travel device (each side) ................................................................ 0.6Hydraulic system ......................................................................... 58.0Hydraulic oil tank (Reference oil level) .......................................... 35.0

DIMENSIONS

WORKING RANGES

GroundLine

E

F

B

C

K

H

A

I

GH

D

J

Note:The illustration shows the ZX27U-2 canopy version equipped with 1.17 m arm and 300 mm rubber shoes.The canopy and cabin conform to ROPS (ISO 3471) and FOPS (ISO 10262, Level 1) requirements.

Unit: mmModel code ZX27U-2

Canopy CabinA Overall width 1 550B Overall height 2 460 2 500C Rear-end swing radius (With extra counterweight) 775 (865)D Minimum ground clearance 320E Counterweight clearance 560F Engine cover height 1 420G Undercarriage length 1 950H Undercarriage width 1 550I Sprocket centre to idler centre 1 490J Track shoe width 300K Maximum transport length (With long arm) 4 200 (4 280)

GroundLine

F

G

AH

B

D

E I I'

C

100

Note:The illustration shows the ZX27U-2 canopy version equipped with 0.08 m3 bucket, 1.17 m arm and 300 mm rubber shoes.

Unit: mmModel code ZX27U-2

Canopy CabinA Maximum digging reach 4 670 [4 920]B Maximum digging depth 2 620 [2 920]C Maximum cutting height 4 460 [4 570] 4 290 [4 350]D Maximum dumping height 3 210 [3 320] 3 040 [3 120]E Minimum swing radius (At maximum boom swing) 1 950 (1 580) 2 050 (1 750)

[2 030 (1 640)] [2 090 (1 780)]F Blade bottom highest position above ground 360G Blade bottom lowest position above ground 315H Maximum vertical wall 2 220 [2 390]I / I' Offset distance (Maximum boom-swing angle) 605 (62°) / 740 (72°) 605 (62°) / 700 (62°)

The figure in [ ] shows the eqipped with 1.47 m arm.

Equipped with ZX27U-2:1.17 m arm and 0.08 m3 (ISO 7451 capacity)bucket.

Operating Groundweight pressure

Canopy version300 mm rubber shoes 2 800 kg 27 kPa300 mm grouser shoes 2 890 kg 28 kPaCabin version300 mm rubber shoes 2 950 kg 28 kPa300 mm grouser shoes 3 040 kg 29 kPa

WEIGHTS AND GROUND PRESSURE

10 11

LIFTING CAPACITIES

A

B

C

Rating over-side or 360 degrees Rating over-front

Notes: 1. Ratings are based on SAE J1097.2. Lifting capacity does not exceed 75% of tipping load with the machine on firm, level ground or 87% full hydraulic capacity.3. The load point is a hook (not standard equipment) located on the back of the bucket.4. An asterisk mark (*) indicates load limited by hydraulic capacity.

ZX27U-2 CANOPY VERSION, BLADE ABOVE GROUND, LONG ARM Unit:1 000 kg

ZX27U-2 CANOPY VERSION, BLADE ON GROUND, LONG ARM Unit:1 000 kg

ZX27U-2 CANOPY VERSION, BLADE ON GROUND Unit:1 000 kg

ZX27U-2 CANOPY VERSION, BLADE ABOVE GROUND Unit:1 000 kg

A: Load radius

B: Load point height

C: Lifting capacity

METRIC MEASURE

OPTIONAL EQUIPMENT

STANDARD EQUIPMENT

EQUIPMENT

ENGINE•Water-separator for engine fuel system•Neutral engine start system

HYDRAULIC SYSTEM•Hydraulic pilot type control levers•Pilot control shut-off levers•Two-speed travel system•Swing parking brake•Travel parking brake•Piping for attachments

CANOPY (CABIN)•ROPS/FOPS**•Adjustable reclining seat**•Seat belt**•Seat backrest box**•Air conditioner***•Defroster***•Windshield wiper***•Windshield washer***•Two work lights**•AM/FM radio***•Ashtray***•Drink holder**•Utility box*•Rear view mirror***•Evacuation hammer***

Notes:* For canopy versions** For canopy and cabin versions*** For cabin versions

ENGINE•Air cleaner double filter

HYDRAULIC SYSTEM•Swing motion alarm device with lamp•Travel motion alarm device

CANOPY (CABIN)•Suspension seat**•Wrist rest**•12 V outlet**•Auxiliary light**•Rear view mirror*•NS (New Standard) key •Electrical key (Immobilizer) •TEN key lock•Mechanical lock

Notes:* For canopy versions** For canopy and cabin versions*** For cabin versions

UNDERCARRIAGE•300 mm grouser shoes•300 mm pad crawler shoes

FRONT ATTACHMENTS•1.47 m arm•Backhoe buckets

COUNTERWEIGHT•Extra counterweight : 190 kg

UNDERCARRIAGE•300 mm rubber shoes•Semi-long stay blade

FRONT ATTACHMENTS•O-ring type pin-seals for hoe bucket•HN bushing•WC spraying•2.10 m boom•1.17 m arm

Standard equipment may vary by country, so please consult your Hitachi dealer for details.

Optional equipment may vary by country, so please consult your Hitachi dealer for details.

Arm 1.17 m 2 m 0.48 0.55 0.29 0.33 0.24 0.28 4.40Rubber shoes 300 mm 1 m 0.44 0.51 0.28 0.32 0.23 0.27 4.48Bucket 0.08 m3 0 m 0.42 0.49 0.27 0.31 0.25 0.29 4.22

-1 m *1.58 *1.58 0.80 0.95 0.42 0.48 0.34 0.39 3.53-2 m 0.84 *0.91

Load radius

4 mLoad pointheight

At max. reach

meter

3 m2 m1 m

Arm 1.17 m 2 m 0.57 0.65 0.35 0.40 0.30 0.34 4.40Rubber shoes 300 mm 1 m 0.53 0.61 0.34 0.39 0.28 0.32 4.48Bucket 0.08 m3 0 m 0.51 0.58 0.33 0.38 0.31 0.35 4.22Extra counterweight 190 kg -1 m *1.58 *1.58 0.95 1.13 0.50 0.58 0.41 0.47 3.53

-2 m *0.91 *0.91

Arm 1.17 m 2 m 0.48 *0.65 0.29 *0.65 0.24 *0.39 4.40Rubber shoes 300 mm 1 m 0.44 *0.98 0.28 *0.73 0.23 *0.41 4.48Bucket 0.08 m3 0 m 0.42 *1.19 0.27 *0.79 0.25 *0.49 4.22

-1 m *1.58 *1.58 0.80 *1.65 0.42 *1.11 0.34 *0.70 3.53-2 m 0.84 *0.91

Load radius

4 mLoad pointheight

At max. reach

meter

3 m2 m1 m

Arm 1.17 m 2 m 0.57 *0.65 0.35 *0.65 0.30 *0.39 4.40Rubber shoes 300 mm 1 m 0.53 *0.98 0.34 *0.73 0.28 *0.41 4.48Bucket 0.08 m3 0 m 0.51 *1.19 0.33 *0.79 0.31 *0.49 4.22Extra counterweight 190 kg -1 m *1.58 *1.58 0.95 *1.65 0.50 *1.11 0.41 *0.70 3.53

-2 m *0.91 *0.91

Arm 1.17 m 2 m 0.29 0.34 0.22 0.25 4.66Rubber shoes 300 mm 1 m 0.45 0.52 0.28 0.32 0.21 0.24 4.73Bucket 0.08 m3 0 m 0.77 0.93 0.42 0.48 0.26 0.31 0.22 0.26 4.49

-1 m *1.27 *1.27 0.78 0.93 0.41 0.47 0.26 0.30 0.28 0.33 3.88-2 m 0.81 0.96 0.42 0.49

Load radius

4 mLoad pointheight

At max. reach

meter

3 m2 m1 m

Arm 1.17 m 2 m 0.35 0.40 0.27 0.31 4.66Rubber shoes 300 mm 1 m 0.54 0.62 0.34 0.39 0.25 0.29 4.73Bucket 0.08 m3 0 m 0.92 1.10 0.50 0.58 0.32 0.37 0.27 0.31 4.49Extra counterweight 190 kg -1 m *1.27 *1.27 0.93 1.11 0.49 0.57 0.32 0.37 0.34 0.39 3.88

-2 m 0.96 1.14 0.51 0.59

Arm 1.17 m 2 m 0.29 *0.56 0.22 *0.36 4.66Rubber shoes 300 mm 1 m 0.45 *0.86 0.28 *0.67 0.21 *0.38 4.73Bucket 0.08 m3 0 m 0.77 *1.24 0.42 *1.14 0.26 *0.77 0.22 *0.45 4.49

-1 m *1.27 *1.27 0.78 *1.79 0.41 *1.16 0.26 *0.64 0.28 *0.63 3.88-2 m 0.81 *1.35 0.42 *0.75

Load radius

4 mLoad pointheight

At max. reach

meter

3 m2 m1 m

Arm 1.17 m 2 m 0.35 *0.56 0.27 *0.36 4.66Rubber shoes 300 mm 1 m 0.54 *0.86 0.34 *0.67 0.25 *0.38 4.73Bucket 0.08 m3 0 m 0.92 *1.24 0.50 *1.14 0.32 *0.77 0.27 *0.45 4.49Extra counterweight 190 kg -1 m *1.27 *1.27 0.93 *1.79 0.49 *1.16 0.32 *0.64 0.34 *0.63 3.88

-2 m 0.96 *1.35 0.51 *0.75

KS-E509

These specifications are subject to change without notice.Illustrations and photos show the standard models, and may or may not includeoptional equipment, accessories, and all standard equipment.Before use, go through Operator's Manual for proper operation.

Head Office : 5-1, Koraku 2-chome, Bunkyo-kuTokyo 112-8563, Japan

Telephone : 81-3-3830-8050Facsimile : 81-3-3830-8204URL : www.hitachi-c-m.com

Hitachi Construction Machinery Co., Ltd.

05.12 (SA / HP, GT3)

Printed in Japan