SPECIFICATIONS

1. MAJOR COMPONENT

Boom swing cylinder Tool box Swing motor Fuel tank Hydraulic tank

Oil cooler
Radiator

Engine

Main pump

Tooth Bucket Main control valve Turning joint

Arm Arm cylinder Boom Boom cylinder Swing post Cab Muffler

Tail pipe

Idler
Sprocket Counterweight
Side cutter Track
Carrier roller Travel motor
Control link Track roller
Bucket cylinder Control rod Dozer blade

R27Z92SP01

2-1
2. SPECIFICATIONS

1) 1.945 m ( 6' 5") MONO BOOM, 1.12 m ( 3' 8") ARM, WITH BOOM SWING POST

I(I')
C

E
P

H
F
O

J
N
Q

K M
B(L)
A
R27Z92SP02

Description Unit Specification

Operating weight (cabin / canopy) kg (lb) 2600 (5730) / 2450 (5400)
Bucket capacity (SAE heaped), standard m3 (yd3) 0.07 (0.09)
Overall length A 4030 (13' 3")
Overall width, with 250 mm shoe B 1500 ( 4' 11")
Overall height C 2500 ( 8' 2")
Overall height of cab E 2500 ( 8' 2")
Ground clearance of counterweight F 540 ( 1' 9")
Minimum ground clearance H 290 ( 0' 11")
Rear-end distance I 775 ( 2' 7")
Rear-end swing radius I' 775 ( 2' 7")
mm (ft-in)
Distance between tumblers J 1490 ( 4' 11")
Undercarriage length K 1910 ( 6' 3")
Undercarriage width L 1500 ( 4' 11")
Track gauge M 1250 ( 4' 1")
Track shoe width, standard N 250 ( 9.8")
Height of blade O 300 ( 1' 0")
Ground clearance of blade up P 330 ( 1' 1")
Depth of blade down Q 380 ( 1' 3")
Travel speed (low/high) km/hr (mph) 2.5/4.5 (1.6/2.8)
Swing speed rpm 9.1
Gradeability Degree (%) 30 (58)
Ground pressure 250 mm rubber shoe (cab / canopy) kgf/cm2 (psi) 0.33 (4.69) / 0.31 (4.41)

2-2
3. WORKING RANGE

1) 1.945 m (6' 5") MONO BOOM WITH BOOM SWING POST

A
A'
F

D
C E
B

R27Z92SP03

Description 1.12 m (3' 8") Arm

Max digging reach A 4480 mm (14' 8")
Max digging reach on ground A' 4340 mm (14' 3")
Max digging depth B 2420 mm ( 7' 11")
Max vertical wall digging depth C 1460 mm ( 4' 9")
Max digging height D 4150 mm (13' 7")
Max dumping height E 2930 mm ( 9' 7")
Min swing radius F 1980 mm ( 6' 6")
Boom swing radius (left/right) 75°/50°
19.2 kN
SAE 1960 kgf
4320 lbf
Bucket digging force
21.1 kN
ISO 2150 kgf
4740 lbf
14.2 kN
SAE 1450 kgf
3200 lbf
Arm crowd force
14.6 kN
ISO 1490 kgf
3280 lbf

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4. WEIGHT

Item kg lb
Upperstructure assembly 1480 3260
Main frame weld assembly 310 683
Engine assembly 136 300
Main pump assembly 19 42
Main control valve assembly 25 55
Swing motor assembly 34 75
Hydraulic oil tank assembly 50 110
Fuel tank assembly 30 70
Boom swing post 75 165
Counterweight 118 260
Cab assembly 210 460
Lower chassis assembly 805 1770
Track frame weld assembly 220 485
Swing bearing 47 100
Travel motor assembly 36 80
Turning joint 11 24
Track recoil spring 16 35
Idler 19 42
Carrier roller 3 7
Track roller 6 13
Sprocket 7 15
Rubber track (250 mm) 93 210
Dozer blade assembly 92 200
Front attachment assembly
315 694
(1.945 m boom, 1.12 m arm, 0.07 m3 SAE heaped bucket)
1.945 m boom assembly 80 176
1.12 m arm assembly 40 88
0.07 m3 SAE heaped bucket 57 126
Boom cylinder assembly 26 57
Arm cylinder assembly 26 57
Bucket cylinder assembly 20 44
Bucket control link assembly 20 45
Dozer cylinder assembly 21 46
Boom swing cylinder assembly 23 51

2-4
 5. LIFTING CAPACITIES

1) 1.945 m ( 6' 5") boom, 1.12 m ( 3' 8") arm equipped with 0.07 m3 (SAE heaped) bucket and 250 mm
(10") rubber track, the dozer blade up with 118 kg (260 lb) counterweight.

· : Rating over-front · : Rating over-side or 360 degree

Load radius At max. reach

Load point 2.0 m (7.0 ft) 2.5 m (8.0 ft) 3.0 m (10.0 ft) 3.5 m (11.0 ft) Capacity Reach
height
m (ft)
3.5 m kg 460 400 2.88
(11.0 ft) lb 1010 880 (9.4)
3.0 m kg 410 360 330 290 3.48
(10.0 ft) lb 900 790 730 640 (11.4)
2.5 m kg 410 360 270 240 3.85
(8.0 ft) lb 900 790 600 530 (12.6)
2.0 m kg 560 490 410 360 310 270 240 210 4.09
(7.0 ft) lb 1230 1080 900 790 680 600 530 460 (13.4)
1.5 m kg 800 680 540 470 400 350 300 260 220 190 4.22
(5.0 ft) lb 1760 1500 1190 1040 880 770 660 570 490 420 (13.8)
1.0 m kg 520 450 380 340 290 260 210 190 4.26
(3.0 ft) lb 1150 990 840 750 640 570 460 420 (14.0)
0.5 m kg 730 610 500 430 370 330 290 250 210 190 4.22
(2.0 ft) lb 1610 1340 1100 950 820 730 640 550 460 420 (13.8)
Ground kg 720 600 490 420 370 320 290 250 220 190 4.09
Line lb 1590 1320 1080 930 820 710 640 550 490 420 (13.4)
-0.5 m kg 720 610 490 420 370 320 240 210 3.86
(-2.0 ft) lb 1590 1340 1080 930 820 710 530 460 (12.7)
-1.0 m kg 730 610 500 430 370 320 290 250 3.49
(-3.0 ft) lb 1610 1340 1100 950 820 710 640 550 (11.5)
-1.5 m kg 750 630 510 440 400 350 2.90
(-5.0 ft) lb 1650 1390 1120 970 880 770 (9.5)
-2.5 m kg 370 330 3.14
(-8.0 ft) lb 820 730 (10.3)
Note 1. Lifting capacity are based on SAE J1097 and ISO 10567.
2. Lifting capacity of the ROBEX series does not exceed 75% of tipping load with the machine
on firm, level ground or 87% of full hydraulic capacity.
3. The load point is a hook located on the back of the bucket.
4. *indicates load limited by hydraulic capacity.

2-5
 2) 1.945 m ( 6' 5") boom, 1.12 m ( 3' 8") arm equipped with 0.07 m3 (SAE heaped) bucket and 250 mm
(10") rubber track, the dozer blade down with 118 kg (260 lb) counterweight.

· : Rating over-front · : Rating over-side or 360 degree

Load radius At max. reach

Load point 2.0 m (7.0 ft) 2.5 m (8.0 ft) 3.0 m (10.0 ft) 3.5 m (11.0 ft) Capacity Reach
height
m (ft)
3.5 m kg *550 400 2.88
(11.0 ft) lb *1210 880 (9.4)
3.0 m kg *660 360 *570 290 3.48
(10.0 ft) lb *1460 790 *1260 640 (11.4)
2.5 m kg *640 360 *580 240 3.85
(8.0 ft) lb *1410 790 *1280 530 (12.6)
2.0 m kg *740 490 *700 360 *680 270 *600 210 4.09
(7.0 ft) lb *1630 1080 *1540 790 *1500 600 *1320 460 (13.4)
1.5 m kg *1360 680 *970 470 *810 350 *730 260 *620 190 4.22
(5.0 ft) lb *3000 1500 *2140 1040 *1790 770 *1610 570 *1370 420 (13.8)
1.0 m kg *1220 450 *940 340 *790 260 *630 190 4.26
(3.0 ft) lb *2690 990 *2070 750 *1740 570 *1380 420 (14.0)
0.5 m kg *1310 610 *1380 430 *1040 330 *840 250 *650 190 4.22
(2.0 ft) lb *2890 1340 *3040 950 *2290 730 *1850 550 *1430 420 (13.8)
Ground kg *1760 600 *1450 430 *1080 320 *860 250 *670 190 4.09
Line lb *3880 1320 *3200 950 *2380 710 *1900 550 *1480 420 (13.4)
-0.5 m kg *1990 610 *1410 420 *1050 320 *690 210 3.86
(-2.0 ft) lb *4390 1340 *3110 930 *2310 710 *1520 460 (12.7)
-1.0 m kg *1740 610 *1250 430 *900 320 *690 250 3.49
(-3.0 ft) lb *3840 1340 *2760 950 *1980 710 *1520 550 (11.5)
-1.5 m kg *1250 630 *840 440 *650 350 2.90
(-5.0 ft) lb *2760 1390 *1850 970 *1430 770 (9.5)
-2.5 m kg *490 330 3.14
(-8.0 ft) lb *1080 730 (10.3)
Note 1. Lifting capacity are based on SAE J1097 and ISO 10567.
2. Lifting capacity of the ROBEX series does not exceed 75% of tipping load with the machine
on firm, level ground or 87% of full hydraulic capacity.
3. The load point is a hook located on the back of the bucket.
4. *indicates load limited by hydraulic capacity.

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6. BUCKET SELECTION GUIDE

0.07 m3 SAE
heaped bucket

Recommendation
Capacity Width
1.945 m (6' 5") boom
Weight
SAE CECE Without With
1.12 m (3' 8") arm
heaped heaped side cutter side cutter

0.07m3 0.06 m3 435 mm 490 mm 57 kg Applicable for materials with density of 1600 kgf/m 3
(0.09 yd3) (0.07 yd3) (17.1") (19.3") (125 lb) (2700 lb /yd3) or less

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7. UNDERCARRIAGE

(1) TRACKS
X-leg type center frame is integrally welded with reinforced box-section track frames. The design
includes dry tracks, lubricated rollers, idlers, sprockets, hydraulic track adjusters with shock
absorbing springs and assembled track-type tractor shoes with triple grousers.
(2) TYPES OF SHOES
Rubber track

Model Shapes

Shoe width mm (in) 250 (10")

Operating weight kg (lb) 2600 (5730)
R25Z-9A
Ground pressure kgf/cm2 (psi) 0.33 (4.69)
Overall width mm (ft-in) 1500 ( 4' 11")

(3) NUMBER OF ROLLERS AND SHOES ON EACH SIDE

Item Quantity
Carrier rollers 1 EA
Track rollers 3 EA

2-8
8. SPECIFICATIONS FOR MAJOR COMPONENTS

1) ENGINE
Item Specification
Model Mitsubishi S3L2
Type 4-cycle vertical overhead valve, diesel fuel
Cooling method Water cooling
Number of cylinders and arrangement 3 cylinders, in-line
Firing order 1-3-2
Combustion chamber type Swirl chamber type
Cylinder bore×stroke 78×92 mm (3.07"×3.62")
Piston displacement 1318 cc (80.4 cu in)
Compression ratio 22 : 1
Rated gross horse power (SAE J1995) 24.7 Hp at 2300 rpm (18.4 kW at 2300 rpm)
Maximum torque at 1800 rpm 8 kgf·m (57.8 lbf·ft)
Engine oil quantity 5.9ℓ(1.6 U.S. gal)
Dry weight 136 kg (300 lb)
High idling speed 2500+30 rpm
Low idling speed 1160±25 rpm
Rated fuel consumption 198 g/Hp·hr at 2300 rpm (265 g/kW·hr at 2300 rpm)
Starting motor 12V-1.7 kW
Alternator 12V-40 A
Battery 1×12 V×58 Ah (5h rating)

2) MAIN PUMP
Item Specification
Type Variable displacement tandem axis piston pumps
Capacity 2×12 cc/rev
Rated oil flow 2×27.6ℓ/min (7.3 U.S. gpm / 6.1 U.K. gpm)
Rated speed 2300 rpm

2-9
 3) GEAR PUMP
Item Specification
Type Fixed displacement gear pump single stage
Capacity 8.5/4.5 cc/rev
Rated oil flow 19.6/10.4ℓ/min (5.2/2.7 U.S. gpm / 4.3/2.3 U.K. gpm)

4) MAIN CONTROL VALVE

Item Specification
Type Sectional, 9 spools (12 blocks)
Operating method Hydraulic pilot system
Main relief valve pressure 220 kgf/cm2 (3130 psi)
Overload relief valve pressure 240 kgf/cm2 (3410 psi)

5) SWING MOTOR
Item Specification
Type Fixed displacement axial piston motor
Capacity 12.5 cc/rev
Relief pressure 170 kgf/cm2 (2420 psi)
Braking system Automatic, spring applied hydraulic released
Braking torque 7.0 kgf·m (50.6 lbf·ft)
Brake release pressure 25~50 kgf/cm2 (356~710 psi)
Reduction gear type 2 - stage planetary

6) TRAVEL MOTOR
Item Specification
Type Variable displacement axial piston motor
Relief pressure 220 kgf/cm2 (3130 psi)
Reduction gear type 2-stage planetary
Braking system Automatic, spring applied hydraulic released
Brake release pressure 19 kgf/cm2 (270 psi)
Braking torque 5.7 kgf·m (41 lbf·ft)

2-10
 7) CYLINDER

Item Specification
Bore dia×Rod dia×Stroke Ø75×Ø45×565 mm
Boom cylinder
Cushion Extend only
Bore dia×Rod dia×Stroke Ø70×Ø45×500 mm
Arm cylinder
Cushion Extend and retract
Bore dia×Rod dia×Stroke Ø60×Ø35×420 mm
Bucket cylinder
Cushion -
Bore dia×Rod dia×Stroke Ø75×Ø40×400 mm
Boom swing cylinder
Cushion -
Bore dia×Rod dia×Stroke Ø85×Ø45×140 mm
Dozer cylinder
Cushion -
※ Discoloration of cylinder rod can occur when the friction reduction additive of lubrication oil spreads on
the rod surface.
※ Discoloration does not cause any harmful effect on the cylinder performance.

8) BUCKET
Capacity Tooth Width
Item
SAE heaped CECE heaped quantity Without side cutter With side cutter

Standard 0.07 m3 (0.09 yd3) 0.06 m3 (0.07 yd3) 4 435 mm (17.1") 490 mm (19.3")

2-11
9. RECOMMENDED OILS

Use only oils listed below or equivalent.

Do not mix different brand oil.
Ambient temperature˚C(˚F)
Capacity
Service point Kind of fluid
ℓ (U.S. gal) -50 -30 -20 -10 0 10 20 30 40
(-58) (-22) (-4) (14) (32) (50) (68) (86) (104)

★SAE 5W-40

SAE 30
Engine
Engine oil 5.9 (1.6) SAE 10W
oil pan
SAE 10W-30

SAE 15W-40

★SAE 75W-90
0.6×2
Final drive Gear oil
(0.16×2)
SAE 85W-140

Tank; ★ISO VG 15
27(7.1)
Hydraulic tank Hydraulic oil ISO VG 46
System;
55 (14.5) ISO VG 68

★ASTM D975 NO.1

Fuel tank Diesel fuel 30 (7.9)
ASTM D975 NO.2

Fitting ★NLGI NO.1

Grease As required
(grease nipple)
NLGI NO.2

Mixture of Ethylene glycol base permanent type (50 : 50)

Radiator
antifreeze 4.2 (1.1)
(reservoir tank)
and water ★Ethylene glycol base permanent type (60 : 40)

SAE : Society of Automotive Engineers ★ : Cold region

API : American Petroleum Institute Russia, CIS, Mongolia
ISO : International Organization for Standardization
NLGI : National Lubricating Grease Institute
ASTM : American Society of Testing and Material

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