Hitachi Ex75ur3 Manual

							ZAXIS 75US-3
n Engine Rated Power: 54 hp (40.5 kW) @ 2,000 rpm 
n Operating Weight: 17,743 lb. (8048 kg) 
n Backhoe Bucket: 0.40–0.66 cu. yd. (0.31–0.50 m
3)  
						

							Engine 
 Manufacturer and Model..................................................\
.......Isuzu 4LE2X
  Non-Road Emission Standards.............................................\
...certified to EPA interim Tier-4 emissions
  Net Power (ISO9249)...................................................\
............54 hp (40.5 kW) @ 2,000 rpm
  Cylinders...............................................................\
..................4
  Displacement............................................................\
..............133 cu. in. (2.2 L)
  Off-Level Capacity......................................................\
.............70% (35 deg.)
  Aspiration..............................................................\
..................turbocharged with intercooler
Cooling 
  Variable-speed fan directly driven by the engine through a linear clutch\
; nonreversible
Powertrain
  Two-speed propel with automatic shift
  Maximum Travel Speed
    Low ........................................................................\
..........1.9 mph (3.1 km/h)
    High ........................................................................\
.........3.1 mph (5.0 km/h)
Hydraulics
  Open center, load sensing
  Main Pumps  ........................................................................\
.3 variable-displacement axial piston 
    Maximum Rated Flow  .......................................................2 x 20.9 gpm + 16.3 gpm (2 x 79.2 L/m + 61.6 L/m) 
  Pilot Pump  ........................................................................\
....one gear
    Maximum Rated Flow  .......................................................5.3 gpm (20 L/m)
    System Relief Pressure  .....................................................566 psi (3900 kPa)
  System Operating Pressure
    Implement Circuits ............................................................3,771 psi (26 000 kPa)
    Travel Circuits  ..................................................................4,554 psi (31 400 kPa)
    Swing Circuits  ..................................................................3,626 psi (25 000 kPa)
  Controls  ........................................................................\
.........pilot levers, short stroke, low effort; hydraulic pilot controls with sh\
utoff lever
Cylinders
  Heat-treated, chrome-plated, polished cylinder rods, hardened steel (re\
placeable bushings) pivot pins
      Bore Rod Diameter Stroke
  Boom (1)  ........................................................................\
........4.5 in. (115 mm)  2.6 in. (65 mm) 34.8 in. (885 mm)
  Arm (1)  ........................................................................\
...........3.7 in. (95 mm)  2.4 in. (60 mm) 35.4 in. (900 mm) 
  Bucket (1)  ........................................................................\
......3.3 in. (85 mm)  2.2 in. (55 mm) 28.7 in. (730 mm)
Electrical
  Batteries  ........................................................................\
........2 x 12 volt
  Reserve Capacity  ...................................................................100 min.
  Alternator Rating  ....................................................................50 amp
  Work Lights  ........................................................................\
....halogen (2), one mounted on boom and one on frame
Undercarriage
  Carrier Rollers (per side)  .........................................................1
  Track Rollers (per side) ...........................................................5
  Shoes, Triple Semi-Grouser (per side)  ....................................40
  Drawbar Pull  ........................................................................\
..14,661 lb. (6650 kg)
  Track
    Adjustment  .......................................................................hydraulic
    Chain ........................................................................\
........sealed and lubricated
Swing Mechanism
  Swing Speed  ........................................................................\
..10.5 rpm
  Swing Torque  ........................................................................\
.12,244 lb.-ft. (16 600 Nm)
ZAXIS 75US-3 SPECIFICATIONS 
						

							Ground Pressure
 24-in. (600 mm) Triple Semi-Grouser Shoes  ..........................3.7 psi (26 kPa)
  18-in. (450 mm) Rubber Crawler Pads  ...................................4.9 psi (34 kPa)
  18-in. (450 mm) Rubber Crawler Belt  .....................................4.9 psi (34 kPa)
Serviceability
  Refill Capacities
    Fuel Tank  ........................................................................\
.35.7 gal. (135 L)
    Cooling System  .................................................................2.7 gal. (10.3 L)
    Engine Oil with Filter  .........................................................3.2 gal. (12.1 L)
    Hydraulic Tank ..................................................................15 gal. (56 L)
    Hydraulic System  ..............................................................26 gal. (100 L)
    Propel Gearbox (each)  .......................................................1.3 qt. (1.2 L)
Operating Weights
  With Full Fuel Tank; 175-lb. (79 kg) Operator;
    0.53-cu.-yd. (0.41 m
3), 30-in. (762 mm),
    735-lb. (333 kg) Bucket; 5-ft. 4-in. (1.62 m)
    Arm; 3,049-lb. (1383 kg) Counterweight;
    and 8-ft. 1-in. (2470 mm) Blade
    24-in. (600 mm) Triple Semi-Grouser Shoes  .....................17,743 lb. (8048 kg)
    18-in. (450 mm) Rubber Crawler Pads  ..............................17,461 lb. (7920 kg)
    18-in. (450 mm) Rubber Crawler Belt  ...............................17,412 lb. (7898 kg)
  Optional Components
    Undercarriage
       24-in. (600 mm) Triple Semi-Grouser Shoes  ..................3,366 lb. (1527 kg)
       18-in. (450 mm) Rubber Crawler Pads  ...........................3,036 lb. (1377 kg)
    One-Piece Boom (with arm cylinder)  .................................1,025 lb. (465 kg)
    Arm with Bucket Cylinder and Linkage
       5 ft. 4 in. (1.62 m)  .........................................................514 lb. (233 kg)
       6 ft. 11 in. (2.12 m)  .......................................................595 lb. (270 kg)
    Boom Lift Cylinder  ............................................................196 lb. (89 kg)
    Counterweight (standard)  ..................................................3,049 lb. (1383 kg)
Operating Dimensions
      Arm Length Arm Length
      5 ft. 4 in. (1.62 m) 6 ft. 11 in. (2.12 m)
  Arm Force  ........................................................................\
......8,554 lb. (38.1 kN)  7,209 lb. (32.1 kN)
  Bucket Digging Force  .............................................................12,368 lb. (55.0 kN)  12,368 lb. (55.0 kN)
  Lifting Capacity Over Front at Ground Level 20-ft.   
    (6.1 m) Reach  ...................................................................4,248 lb. (1927 kg)  4,151 lb. (1883 kg)
  A Maximum Reach  ...............................................................21 ft. 1 in. (6.43 m)  22 ft. 8 in. (6.92 m)
  A’ Maximum Reach at Ground Level  .....................................20 ft. 6 in. (6.26 m)  22 ft. 2 in. (6.76 m)
  B Maximum Digging Depth  ..................................................13 ft. 6 in. (4.11 m)  15 ft. 1 in. (4.61 m)
  B’ Maximum Digging Depth at  
    8-ft. (2.44 m) Flat Bottom  .................................................12 ft. 4 in. (3.76 m)  14 ft. 2 in. (4.33 m)
  C Maximum Cutting Height  ..................................................23 ft. 8 in. (7.21 m)  25 ft. (7.61 m)
  D Maximum Dumping Height  ...............................................16 ft. 10 in. (5.12 m)  18 ft. 1 in. (5.51 m)
  E Minimum Swing Radius  ....................................................5 ft. 11 in. (1.80 m)  7 ft. 1 in. (2.16 m)
  F Maximum Vertical Wall  .....................................................12 ft. (3.67 m)  13 ft. 10 in. (4.22 m)
  G Tail Swing Radius  .............................................................4 ft. 3 in. (1.29 m)  4 ft. 3 in. (1.29 m)
CENTERLINE 
OF SWING
E
D
C
F
G
GROUND LINE
A
A
B
B 
						

							Machine Dimensions 
Lifting Capacities 
 Boldface italic type indicates hydraulic-limited capacities; lightface type indicates s\
tability-limited capacities, in lb. (kg). Ratings at bucket lift hook; machine equipped with
  12-ft. 8-in. (3.72 m) boom, 0.37-cu.-yd. (0.28 m3) bucket; and situa\
ted on firm, uniform supporting surface. Total load includes weight of cables, hook, etc. Figures do not
  exceed 87 percent of hydraulic capacities or 75 percent of weight needed\
 to tip machine. All lift capacities are based on SAE J1097.
  Load Point   10 ft. (3.05 m)   15 ft. (4.57 m)  20 ft. (6.10 m)
  Height   Over Front  Over Side   Over Front  Over Side   Over Front  Over Side
  With 5-ft. 4-in. (1.62 m) arm, either 18-in. (450 mm) rubber crawler\
 pads or 18-in. (450 mm) rubber crawler belt, and 7-ft. 7-in. (2.32 m) blade on ground
  10 ft. (3.05 m)   3,821 (1733)  3,821 (1733)   3,265 (1481)  3,163 (1435)
  5 ft. (1.52 m)   6,566 (2978)  5,570 (2527)   4,056 (1840)  2,987 (1355)
  Ground Line   7,676 (3482)  5,286 (2398)   4,709 (2136)  2,842 (1289)
  –5 ft. (–1.52 m)   7,249 (3288)  5,285 (2397)   4,657 (2112)  2,807 (1273)
  –10 ft. (–3.05 m)   5,260 (2386)  5,260 (2386)
 With 6-ft. 11-in. (2.12 m) arm, either 18-in. (450 mm) rubber crawle\
r pads or 18-in. (450 mm) rubber crawler belt, and 7-ft. 7-in. (2.32 m) blade on ground
  15 ft. (4.57 m)      2,464 (1118)  2,464 (1118)
  10 ft. (3.05 m)   2,871 (1302)  2,871 (1302)   2,775 (1259)  2,775 (1259)
  5 ft. (1.52 m)   5,593 (2537)  5,593 (2537)   3,656 (1658)  3,006 (1363)   3,073 (1394)  1,838 (834)
  Ground Line   7,400 (3357)  5,285 (2397)   4,479 (2032)  2,824 (1281)   2,816 (1277)  1,776 (806)
  –5 ft. (–1.52 m)   7,486 (3396)  5,202 (2360)   4,721 (2141)  2,748 (1246)
  –10 ft. (–3.05 m)   6,187 (2806)  5,312 (2409)
      Arm Length Arm Length
      5 ft. 4 in. (1.62 m) 6 ft. 11 in. (2.12 m)
  A Overall Length  ..................................................................20 ft. 8 in. (6.30 m)  20 ft. 11 in. (6.37 m)
  B Overall Height  ...................................................................8 ft. 6 in. (2.60 m)  9 ft. 3 in. (2.83 m)
  C Overall Width:
       24-in. (600 mm) Triple Semi-Grouser Shoes  ..................8 ft. 1 in. (2.47 m)
          Track Height  ...............................................................26 in. (0.65 m)
       18-in. (450 mm) Rubber Crawler Pad  ............................7 ft. 7 in. (2.32 m)
       18-in. (450 mm) Rubber Crawler Belt  ............................7 ft. 7 in. (2.32 m)
  D Rear-End Length/Swing Radius  ........................................4 ft. 3 in. (1.29 m)
  E Distance Between Idler/Sprocket Centerline  ......................7 ft. 6 in. (2.29 m)
  F Undercarriage Length  .......................................................9 ft. 7 in. (2.92 m)
  G Counterweight Clearance  ..................................................30 in. (0.76 m)
  H Cab Height  ........................................................................\
8 ft. 10 in. (2.69 m)
  I Ground Clearance  .............................................................14 in. (360 mm)
  J Upperstructure Width  ........................................................7 ft. 5 in. (2.25 m)
  K Gauge Width  .....................................................................6 ft. 2 in. (1.87 m)
  L Blade Lift Height  ...............................................................15 in. (380 mm)
  M Blade Cut Below Grade  .....................................................11 in. (280 mm)
  N Blade Lift Angle  ................................................................27 deg.
    Blade Height  .....................................................................18 in. (460 mm)
    Blade Width  ......................................................................8 ft. 1 in. (2.47 m)
ZAXIS 75US-3
I
H
C
J
B
E
FA
G
D
K
NL
M 
						

							ZAXIS 75US-3 SPECIFICATIONS
Lifting Capacities (continued)
 Boldface italic type indicates hydraulic-limited capacities; lightface type indicates s\
tability-limited capacities, in lb. (kg). Ratings at bucket lift hook; machine equipped with
  12-ft. 8-in. (3.72 m) boom, 0.37-cu.-yd. (0.28 m3) bucket; and situa\
ted on firm, uniform supporting surface. Total load includes weight of cables, hook, etc. Figures do not
  exceed 87 percent of hydraulic capacities or 75 percent of weight needed\
 to tip machine. All lift capacities are based on SAE J1097.
  Load Point   10 ft. (3.05 m)   15 ft. (4.57 m)  20 ft. (6.10 m)
  Height   Over Front  Over Side   Over Front  Over Side   Over Front  Over Side
  With 5-ft. 4-in. (1.62 m) arm, 24-in. (600 mm) triple semi-grouser s\
hoes, and 8-ft. 1-in. (2.47 m) blade on ground
  10 ft. (3.05 m)   3,821 (1733)  3,821 (1733)   3,265 (1481)  3,426 (1554)
  5 ft. (1.52 m)   6,566 (2978)  5,714 (2592)   4,056 (1840)  3,070 (1393)
  Ground Line   7,676 (3482)  5,430 (2463)   4,709 (2136)  2,924 (1326)
  –5 ft. (–1.52 m)   7,249 (3288)  5,429 (2463)   4,657 (2112)  2,890 (1311)
  –10 ft. (–3.05 m)   5,260 (2386)  5,260 (2386)
 With 6-ft. 11-in. (2.12 m) arm, 24-in. (600 mm) triple semi-grouser \
shoes, and 8-ft. 1-in. (2.47 m) blade on ground
  15 ft. (4.57 m)      2,464 (1118)  2,464 (1118)
  10 ft. (3.05 m)   2,871 (1302)  2,871 (1302)   2,775 (1259)  2,775 (1259)
  5 ft. (1.52 m)   5,593 (2537)  5,593 (2537)   3,656 (1658)  3,089 (1401)   3,073 (1394)  1,896 (860)
  Ground Line   7,400 (3357)  5,429 (2463)   4,479 (2032)  2,907 (1319)   2,816 (1277)  1,834 (832)
  –5 ft. (–1.52 m)   7,486 (3396)  5,346 (2425)   4,721 (2141)  2,831 (1284)
  –10 ft. (–3.05 m)   6,187 (2806)  5,456 (2475)
Buckets
 A full line of buckets is offered to meet a wide variety of applications\
. Several tooth selections are available including the ESCO (Vertalok) Standard, Tiger, Twin Tiger, or  
  Flare tooth. Replaceable cutting edges are available through parts. Opti\
onal side cutters add 6 inches (150 mm) to bucket widths.
    Bucket Bucket   Bucket  Arm Dig Force  Arm Dig Force  Bucket
  Type Bucket  Width Capacity*  Weight Dig Force 5 ft. 4 in. (1.62 m)  6 ft. 11 in. (2.12 m)  Tip Radius No. Teeth
    in. mm  cu. yd.  m
3 lb.  kg  lb. kN  lb. kN  lb. kN  in. mm
  Heavy-Duty  24   610  0.40 0.31  633 287  12,061 54.0  8,491 38.0  7,162 32.0 42.80 1087  5
    30   762  0.53 0.41  735 333  12,061 54.0  8,491 38.0  7,162 32.0 42.80 1087  6
    36   914  0.66 0.50  837 380  12,061 54.0  8,491 38.0  7,162 32.0 42.80 1087  7
  Ditching  48 1219  0.64 0.49  727 330  14,344 64.0  8,911 40.0  7,473 33.0 35.69   907  0
  *All capacities are SAE heaped ratings.
Bucket Selection Guide*
1.25
(1.0)
0.75
(0.6)
2,0002,200 2,600 3,200
lb./cu. yd.
kg/m
BUCKET SIZE cu. yd. (m   )
1,6003,400
0.25
(0.2) 0.50
(0.4 )
1.00
(0.8) 1.50
(1.2)
1,200 1,400 1,800 2,4002,8003,000 3,600
1300
70080090010001100120020001400150016001700180019002100
Hitachi 6-ft. 11-in. (2.12 m) Arm
Hitachi 5-ft. 4-in. (1.62 m) Arm
3
3
Wet Peat
Topsoil
Coal
Caliche
Shale
Dry Sand
Dry Clay
Limestone
Wet Earth
Wet Clay, Granite
Moist Sand
Wet Sand
Wet Sand, Gravel
*Contact your Hitachi dealer for optimum bucket and attachment selection\
s. These recommendations are for general conditions and average use. Does not include optional equipment such as thumbs  
or couplers. Larger buckets may be possible when using light materials, \
for flat and level operations, less compacted materials, and volume loading applications such as mass excavation applications  
in ideal conditions. Smaller buckets are recommended for adverse conditi\
ons such as off-level applications, rocks, and uneven surfaces. Bucket capacity indicated is SAE heaped. 
						

							Control Owning and Operating Costs 
Customer Personal Service (CPS) is part of Hitachi’s proactive, fix\
-
before-fail strategy on machine maintenance that will help control costs\
, 
increase profits, and reduce stress. Included in this comprehensive 
lineup of ongoing programs and services are:
Fluid analysis program – tells you what’s going on inside all of your 
machine’s major components so you’ll know if there’s a problem \
before 
you see a decline in performance. Fluid analysis is included in most 
extended coverage and preventive-maintenance agreements.
Component life-cycle data – gives you vital information on the pro-
jected life span of components and lets you make informed decisions on machine maintenance by telling you approximately how many hours 
of use you can expect from an engine, transmission, or hydraulic pump. 
This information can be used to preempt catastrophic downtime by 
 
servicing major components at about 80 percent of their life cycle. 
Preventive Maintenance (PM) agreements – give you a fixed cost   
for maintaining a machine for a given period of time. They also help   
you avoid downtime by ensuring that critical maintenance work gets 
done right and on schedule. On-site preventive maintenance service   
performed where and when you need it helps protect you from the ex-
pense of catastrophic failures and lets you avoid waste-disposal hassles\
. 
Extended coverage – gives you a fixed cost for machine repairs for a 
given period of time so you can effectively manage costs. Whether you  work in a severe-service setting or just want to spread the risk of doin\
g 
business, this is a great way to custom-fit coverage for your operation.\
And an extended coverage contract also travels well because it’s back\
ed 
by Hitachi and is honored by all Hitachi construction dealers.
Customer Support Advisors (CSAs) – Hitachi believes the CSA pro-
gram lends a personal quality to Customer Personal Service (CPS). 
 
Certified CSAs have the knowledge and skills for helping make impor-  
tant decisions on machine maintenance and repair. Their mission is to 
help you implement a plan that’s right for your business and take the\
 
burden of machine maintenance off your shoulders. 
Engine
 ●  Certified to EPA interim Tier-4 emissions
 ●  Auto-idle system
 ●  Batteries (two 12 volt), 100-min. reserve capacity
 ●  Coolant recovery tank
 ●  Dual-element dry-type air filter
 ●  Electronic engine control
 ●  Enclosed fan guard (conforms to SAE J1308)
 ●  Engine coolant to –34 deg. F (–37 deg. C)
 ●  Fuel filter with water separator
 ●  Full-flow oil filter
 ●  Turbocharger with charge air cooler
 ●  Muffler, under hood, with vertical curved end
    exhaust stack
 
●  Radiator, oil cooler, and intercooler with dust-
    protective net
 
●  Glow-plug start aid
 ●  500-hour engine oil-change interval
 ●  70% (35 deg.) off-level capacity
 ●  Isolation mounted
 ●  Engine oil-drain coupler
Hydraulic System
 ● Reduced-drift valve for boom down, arm in
 ●  Auxiliary hydraulic valve section
 ●  Spring-applied, hydraulically released automatic
    swing brake
 
●  5,000-hour hydraulic oil-change interval
 ▲  Auxiliary hydraulic lines
 ▲  Auxiliary pilot and electric controls
 ▲  Hydraulic filter restriction indicator kit
 ▲  Load-lowering control device
 ▲  Single-pedal propel control
 ▲  Control pattern-change valve
Undercarriage
 ●  Planetary drive with axial piston motors
 ●  Propel motor shields
 ●  Spring-applied, hydraulically released automatic
    propel brake
 
●  Track guides, front idler
 ●  Two-speed propel with automatic shift
 ●  Upper carrier roller (1)
 ●  Sealed and lubricated track chain
Undercarriage (continued)
 ● Triple semi-grouser shoes, 24 in. (600 mm)
 ●  Undercarriage with blade
 ▲  Rubber crawler pads, 18-in. (450 mm)
 ▲  Rubber belt, continuous, 18-in. (450 mm)
Upperstructure
 ●  Counterweight, 3,049 lb. (1383 kg)
 ●  Right- and left-hand mirrors
 ●  Vandal locks with ignition key: Cab door / Engine
    hood / Fuel cap / Service doors
 
●  Remote-mounted engine oil and fuel filters
Front Attachments
 ● Centralized lubrication system
 ●  Dirt seals on all bucket pins
 ●  Less boom and arm
 ●  Oil-impregnated bushings
 ●  Reinforced resin thrust plates
 ●  Tungsten carbide thermal coating on   
    arm-to-bucket joint
 
▲  Arm, 5 ft. 4 in. (1.62 m)
 ▲  Arm, 6 ft. 11 in. (2.12 m)
 ▲  Attachment quick-couplers
 ▲  Buckets: Ditching / Heavy duty / Heavy-duty high
    capacity / Side cutters and teeth
 
▲  Material clamps
Operator’s Station
 ●  Adjustable independent control positions   
    (seat-to-pedals)
 
●  AM/FM radio
 ●  Auto climate control/air conditioner, 20,000 Btu/hr.
    (5.9 kW), with heater and pressurizer
 
●  Built-in operator’s manual storage compartment
    and manual
 
●  Cell-phone power outlet, 12 volt, 60 watt, 5 amp
 ●  Coat hook
 ●  Deluxe suspension cloth seat with 4-in. (100 mm)
    adjustable armrests
 
●  Floor mat
 ●  Front windshield wiper with intermittent speeds
 ●  Gauges (illuminated): Engine coolant / Fuel
 ●  Horn, electric
 ●  Hour meter, electric
 ●  Hydraulic shutoff lever, all controls
Operator’s Station (continued)
 ● Hydraulic warm-up control
 ●  Interior light
 ●  Large cup holder
 ●  Machine Information Center (MIC)
 ●  Mode selectors (illuminated): Power modes –
    two / Travel modes – two with automatic shift /
    Work mode – one
 
●  Multifunction, color LCD monitor with: Diagnostic
    capability / Multiple-language capabilities / Main-
    tenance tracking / Clock / System monitoring with
    alarm features: Auto-idle indicator, engine air cleaner
    restriction indicator light, engine check, engine
    coolant temperature indicator light with audible
    alarm, engine oil pressure indicator light with audi-
    ble alarm, low-alternator-charge indicator light, 
    low-fuel indicator light, fault-code alert indicator,
    fuel-rate display, wiper-mode indicator, work-
    lights-on indicator, and work-mode indicator
 
●  Motion alarm with cancel switch (conforms to SAE J994)
 ●  Auxiliary hydraulic control switches in right console lever
 ●  SAE two-lever control pattern
 ●  Seat belt, 2 in. (51 mm), retractable
 ●  Tinted glass
 ●  Transparent tinted overhead hatch
 ●  Hot/cold beverage compartment
 ▲  Seat belt, 3 in. (76 mm), non-retractable
 ▲  Monitor system with alarm features: Hydraulic oil
    filter restriction indicator light
 
▲  24- to 12-volt D.C. radio convertors, 10 amp
 ▲  Circulation fan
 ▲  Protection screens for cab front, rear, and side
 ▲  Window vandal protection covers
Electrical
 ●  50-amp alternator
 ●  Blade-type multi-fused circuits
 ●  Positive terminal battery covers
 ▲  ZXLinkTM wireless communication system
Lights
 ●  Work lights: Halogen / One mounted on boom /
    One mounted on frame
DKAZX75UHT3   Litho in U.S.A.   (08-11)  Hitachi Construction and Mining Products • 1515 5th Avenue • Moline, IL 61265 • www.hitachiconstruction.com
Net engine power is with standard equipment including air cleaner, exhau\
st system, alternator, and cooling fan  
at test conditions specified per ISO9249. No derating is required up to \
10,000-ft. (3050 m) altitude. Specifications 
and design subject to change without notice. Wherever applicable, specifications are in accordance with SAE 
standards. Except where otherwise noted, these specifications are based on a unit with standard equipment; 
0.53-cu.-yd. (0.41 m
3), 30-in. (762 mm), 735-lb. (333 kg) bucket; 24-in. (600 mm) triple semi-grouser shoes; 
3,049-lb. (1383 kg) coun-terweight; 5-ft. 4-in. (1.62 m) arm; full fuel tank; and 175-lb. \
(79 kg) operator.
Equipment 
  Key  
●  Standard Equipment  ▲  Optional or Special Equipment