SPECIFICATIONS

1. MAJOR COMPONENT

Tool box Fuel tank Hydraulic tank Main pump

Engine
Charge air cooler
Radiator
Oil cooler

Tooth Bucket Turning joint Swing motor Main control valve

Arm Arm cylinder Boom Boom cylinder Cab Handrail Counterweight

Swing
bearing

Bucket cylinder Connecting link Idler Carrier roller Sprocket

Side cutter Connecting rod Track roller Track Travel motor

340S2SP01

2-1
2. SPECIFICATIONS

1) HX340HD
(1) 6.45 m (21' 2") boom and 3.20 m (10' 6") arm

I(I') D

G'
C

E
G
F

H
J M
K N
B(L)
A

330S2SP02

Description Unit Specification

Operating weight kg (lb) 33000 (72750)
Bucket capacity (SAE heaped), standard m3 (yd3) 1.74 (2.28)
Overall length A 11220 (36' 10")
Overall width, with 600 mm shoe B 3280 (10' 9")
Overall height of boom C 3360 (11' 0")
Superstructure width D 2980 ( 9' 9")
Overall height of cab E 3145 (10' 4")
Ground clearance of counterweight F 1200 ( 3' 11")
Overall height of engine hood G 2672 ( 8' 9")
Overall height of handrail G' 3350 (11' 0")
mm (ft-in)
Minimum ground clearance H 500 ( 1' 8")
Rear-end distance I 3510 (11' 6")
Rear-end swing radius I' 3570 (11' 9")
Distance between tumblers J 4030 (13' 3")
Undercarriage length K 4940 (16' 2")
Undercarriage width L 3280 (10' 9")
Track gauge M 2680 ( 8' 10")
Track shoe width, standard N 600 (24")
Travel speed (low/high) km/hr (mph) 3.6/6.4 (2.11/3.98)
Swing speed rpm 11.2
Gradeability Degree (%) 35 (70)
Ground pressure (600 mm shoe) kgf/cm (psi)
2 0.64 (9.03)
Max traction force kg (lb) 29500 (65030)

2-2
 (2) 6.15 m (20' 2") boom and 2.2 m (7' 3") arm

I(I') D

G'
C

E
G
F

H
J M
K N
B(L)
A

330S2SP02

Description Unit Specification

Operating weight kg (lb) 32806 (72325)
Bucket capacity (SAE heaped), standard m3 (yd3) 1.44 (1.88)
Overall length A 11170 (36' 8")
Overall width, with 600 mm shoe B 3280 (10' 9")
Overall height of boom C 3680 (12' 1")
Superstructure width D 2980 ( 9' 9")
Overall height of cab E 3145 (10' 4")
Ground clearance of counterweight F 1200 ( 3' 11")
Overall height of engine hood G 2672 ( 8' 9")
Overall height of handrail G' 3350 (11' 0")
mm (ft-in)
Minimum ground clearance H 500 ( 1' 8")
Rear-end distance I 3510 (11' 6")
Rear-end swing radius I' 3570 (11' 9")
Distance between tumblers J 4030 (13' 3")
Undercarriage length K 4940 (16' 2")
Undercarriage width L 3280 (10' 9")
Track gauge M 2680 ( 8' 10")
Track shoe width, standard N 600 (24")
Travel speed (low/high) km/hr (mph) 3.6/6.4 (2.11/3.98)
Swing speed rpm 11.2
Gradeability Degree (%) 35 (70)
Ground pressure (600 mm shoe) kgf/cm2(psi) 0.64 (9.03)
Max traction force kg (lb) 29500 (65030)

2-3
 (2) 6.15 m (20' 2") boom and 2.5 m (8' 2") arm

I(I') D

G'
C

E
G
F

H
J M
K N
B(L)
A

330S2SP02

Description Unit Specification

Operating weight kg (lb) 33000 (72750)
Bucket capacity (SAE heaped), standard m3 (yd3) 2.30(3.01)
Overall length A 11040(36' 3")
Overall width, with 600 mm shoe B 3280 (10' 9")
Overall height of boom C 3600 (11' 10")
Superstructure width D 2980 ( 9' 9")
Overall height of cab E 3145 (10' 4")
Ground clearance of counterweight F 1200 ( 3' 11")
Overall height of engine hood G 2672 ( 8' 9")
Overall height of handrail G' 3350 (11' 0")
mm (ft-in)
Minimum ground clearance H 500 ( 1' 8")
Rear-end distance I 3510 (11' 6")
Rear-end swing radius I' 3570 (11' 9")
Distance between tumblers J 4030 (13' 3")
Undercarriage length K 4940 (16' 2")
Undercarriage width L 3280 (10' 9")
Track gauge M 2680 ( 8' 10")
Track shoe width, standard N 600 (24")
Travel speed (low/high) km/hr (mph) 3.6/6.4 (2.11/3.98)
Swing speed rpm 11.2
Gradeability Degree (%) 35 (70)
Ground pressure (600 mm shoe) kgf/cm2(psi) 0.64 (9.03)
Max traction force kg (lb) 29500 (65030)

2-4
 3. WORKING RANGE

1) HX340HD
, HEAV
HEAVY
Y DUTY BU
BUC
CKET
A
A'
F

D
E
C
B'
B

8ft

Boom 6.15 (20' 2") 6.45 (21' 2")

Description m (ft-in)
Arm 2.20 ( 7' 3'') 2.50 ( 8' 2'') 2.20 ( 7' 3'') 2.50 ( 8' 2'') 3.20 ( 10' 6'')
Max digging reach A 10020 (32'10'') 10190 (33' 5'') 10330 (33'11'') 10500 (34' 5'') 11150 (36' 7'')
Max digging reach on ground A' 9810 (32' 2'') 9980 (32' 9'') 10120 (33' 2'') 10290 (33' 9'') 10950 (35'11'')
Max digging depth B 6150 (20' 2'') 6450 (21' 2'') 6360 (20'10'') 6660 (21'10'') 7360 (24' 2'')
Max digging depth (8ft level) B' 5950 (19' 6'') 6230 (20' 5'') 6170 (20' 3'') 6450 (21' 2'') 7200 (23' 7'')
mm (ft-in)
Max vertical wall digging depth C 5700 (18' 8'') 5420 (17' 9'') 5970 (19' 7'') 5660 (18' 7'') 6330 (20' 9'')
Max digging height D 9980 (32' 9'') 9760 (32' 0'') 10260 (33' 8'') 10050 (33' 0'') 10360 (34' 0'')
Max dumping height E 6790 (22' 3'') 6670 (21'11'') 7060 (23' 2'') 6950 (22'10'') 7260 (23'10'')
Min swing radius F 4450 (14' 7'') 4290 (14' 1'') 4630 (15' 2'') 4440 (14' 7'') 4360 (14' 4'')
kN 200.1 [217.2] 187.3 [203.4] 200.1 [217.2] 187.3 [203.4] 188.3 [204.5]
kgf SAE 20400 [22150] 19100 [20740] 20400 [22150] 19100 [20740] 19200 [20850]
lbf 44970 [48830] 42110 [45720] 44970 [48830] 42110 [45720] 42330 [45970]
Bucket digging force
kN 230.5 [250.2] 215.7 [234.3] 230.5 [250.2] 215.7 [234.3] 216.7 [235.3]
kgf ISO 23500 [25510] 22000 [23890] 23500 [25510] 22000 [23890] 22100 [23990]
lbf 51810 [56240] 48500 [52670] 51810 [56240] 48500 [52670] 48720 [52890]
kN 220.7 [239.6] 198.1 [215.1] 220.7 [239.6] 198.1 [215.1] 140.2 [152.3]
kgf SAE 22500 [24430] 20200 [21930] 22500 [24430] 20200 [21930] 14300 [15530]
lbf 49600 [53860] 44530 [48350] 49600 [53860] 44530 [48350] 31530 [34240]
Arm digging force
kN 231.4 [251.3] 207.9 [225.8] 231.4 [251.3] 207.9 [225.8] 145.1 [157.6]
kgf ISO 23600 [25620] 21200 [23020] 23600 [25620] 21200 [23020] 14800 [16070]
lbf 52030 [56480] 46740 [50750] 52030 [56480] 46740 [50750] 32630 [35430]
[ ] : Power boost

2-5
 4. WEIGHT

1) HX340HD
HX340HD
Item
kg lb
Upperstructure assembly 15420 33995
Main frame weld assembly 3910 8620
Engine assembly 604 1332
Main pump assembly 201 443
Main control valve assembly 220 485
Swing motor assembly 370 820
Hydraulic oil tank assembly 300 661
Fuel tank assembly 350 772
Counterweight 6000 13230
Cab assembly 422 930
Radiator assy 230 510
Oil cooler assy 80 180
Lower chassis assembly 11500 25350
Track frame weld assembly 3970 8750
Swing bearing 470 1040
Travel motor assembly 440 970
Turning joint 54 119
Tension cylinder 225 496
Idler 250 551
Sprocket 83 183
Carrier roller 35 77
Track roller 56 123
Track-chain assembly (600 mm standard triple grouser shoe) 1880 4145

6.15 m boom assembly 2806 6186

6.45 m boom assembly 2885 6360

3.2 m arm assembly 1170 2580
2.5 m arm assembly 1064 2346
1.44 m3 SAE heaped bucket 1460 3219
2.30 m3 SAE heaped bucket 1907 4204
Boom cylinder assembly 305 670
Arm cylinder assembly 380 840
Bucket cylinder assembly 265 580
Bucket control linkage assembly 370 820

※ This information is different with operating and transportation weight because it is not including harness, pipe, oil, fuel so on.
※ Refer to Transportation for actual weight information and Specifications for operating weight.

2-6
 5. LIFTING CAPACITIES

Unit : mm
Boom Boom Arm Counterweight Shoe Dozer Outrigger
Model
Type Length Length Weight (kg) Width Front Rear Front Rear
HX340HD Heavy duty 6450 3200 6000 600 - - - -
B

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

A

Lift-point radius At max. reach

Lift point
3.0 m (9.8 ft) 4.5 m (14.8 ft) 6.0 m (19.7 ft) 7.5 m (24.6 ft) 9.0 m (29.5 ft) Capacity Reach
height
m (ft) m (ft)

7.5 m kg *6,830 6,780 *5,610 *5,610 7.74

(24.6 ft) lb *15,060 14,950 *12,370 *12,370 (25.4)
6.0 m kg *7,800 6,710 *5,430 5,240 8.62
(19.7 ft) lb *17,200 14,790 *11,970 11,550 (28.3)
4.5 m kg *11,900 *11,900 *9,580 9,230 *8,430 6,490 *6,660 4,770 *5,450 4,620 9.17
(14.8 ft) lb *26,230 *26,230 *21,120 20,350 *18,580 14,310 *14,680 10,520 *12,020 10,190 (30.1)
3.0 m kg *15,380 13,200 *11,230 8,650 *9,280 6,200 7,070 4,650 *5,650 4,290 9.44
(9.8 ft) lb *33,910 29,100 *24,760 19,070 *20,460 13,670 15,590 10,250 *12,460 9,460 (31.0)
1.5 m kg *17,450 12,250 *12,700 8,140 9,130 5,920 6,920 4,510 *6,050 4,170 9.47
(4.9 ft) lb *38,470 27,010 *28,000 17,950 20,130 13,050 15,260 9,940 *13,340 9,190 (31.1)
0.0 m kg *17,260 11,850 12,510 7,820 8,910 5,720 6,810 4,410 6,540 4,240 9.25
(0.0 ft) lb *38,050 26,120 27,580 17,240 19,640 12,610 15,010 9,720 14,420 9,350 (30.4)
-1.5 m kg *10,800 *10,800 *18,640 11,780 12,360 7,680 8,810 5,630 7,050 4,560 8.77
(-4.9 ft) lb *23,810 *23,810 *41,090 25,970 27,250 16,930 19,420 12,410 15,540 10,050 (28.8)
-3.0 m kg *17,460 *17,460 *17,440 11,910 12,400 7,720 8,860 5,680 8,140 5,250 7.98
(-9.8 ft) lb *38,490 *38,490 *38,450 26,260 27,340 17,020 19,530 12,520 17,950 11,570 (26.2)
-4.5m kg *20,250 *20,250 *14,950 12,240 *11,230 7,960 *9,440 6,790 6.76
(-14.8 ft) lb *44,640 *44,640 *32,960 26,980 *24,760 17,550 *20,810 14,970 (22.2)

2-7
 Unit : mm
Boom Boom Arm Counterweight Shoe Dozer Outrigger
Model
Type Length Length Weight (kg) Width Front Rear Front Rear
HX340HD Heavy duty 6450 3200 6600 600 - - - -
B

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

A

Lift-point radius At max. reach

Lift point
3.0 m (9.8 ft) 4.5 m (14.8 ft) 6.0 m (19.7 ft) 7.5 m (24.6 ft) 9.0 m (29.5 ft) Capacity Reach
height
m (ft) m (ft)

7.5 m kg *6830 *6,830 *5,610 *5,610 7.74

(24.6 ft) lb *15060 *15,060 *12,370 *12,370 (25.4)
6.0 m kg *7800 7,060 *5,430 *5,430 8.62
(19.7 ft) lb *17200 15,560 *11,970 *11,970 (28.3)
4.5 m kg *11,900 *11,900 *9,580 *9,580 *8430 6,830 *6,660 5,050 *5,450 4,880 9.17
(14.8 ft) lb *26,230 *26,230 *21,120 *21,120 *18580 15,060 *14,680 11130 *12,020 10,760 (30.1)
3.0 m kg *15,380 13,880 *11,230 9,100 *9280 6,540 7,400 4,920 *5,650 4,550 9.44
(9.8 ft) lb *33,910 30,600 *24,760 20,060 *20460 14,420 16,310 10,850 *12,460 10,030 (31.0)
1.5 m kg *17,450 12,920 *12,700 8,590 9550 6,260 7,250 4,790 *6,050 4,430 9.47
(4.9 ft) lb *38,470 28,480 *28,000 18,940 21050 13,800 15,980 10,560 *13,340 9,770 (31.1)
0.0 m kg *17,260 12,530 13,090 8,270 9330 6,060 7,140 4,690 *6,720 4,510 9.25
(0.0 ft) lb *38,050 27,620 28,860 18,230 20570 13,360 15,740 10,340 *14,820 9,940 (30.4)
-1.5 m kg *10,800 *10,800 *18,640 12,460 12,940 8,140 9230 5,970 7,390 4,840 8.77
(-4.9 ft) lb *23,810 *23,810 *41,090 27,470 28,530 17,950 20350 13,160 16,290 10,670 (28.8)
-3.0 m kg *17,460 *17,460 *17,440 12,580 12,990 8,180 9280 6,020 8,530 5,560 7.98
(-9.8 ft) lb *38,490 *38,490 *38,450 27,730 28,640 18,030 20460 13,270 18,810 12,260 (26.2)
-4.5m kg *20,250 *20,250 *14,950 12,910 *11,230 8,410 *9,440 7,180 6.76
(-14.8 ft) lb *44,640 *44,640 *32,960 28,460 *24,760 18,540 *20,810 15,830 (22.2)

2-8
 Unit : mm
Boom Boom Arm Counterweight Shoe Dozer Outrigger
Model
Type Length Length Weight (kg) Width Front Rear Front Rear
HX340HD Heavy duty 6150 2200 6600 600 - - - -
B

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

A

Load radius At max. reach

Load 3.0 m (9.8 ft) 4.5 m (14.8 ft) 6.0 m (19.7 ft) 7.5 m (24.6 ft) Capacity Reach
point
height m (ft)

7.5m kg *9650 *9650 *9790 9210 6.31

24.6ft lb *21270 *21270 *21580 20300 (20.7)
6.0m kg *9850 *9850 *9550 7070 7.36
19.7ft lb *21720 *21720 *21050 15590 (24.2)
4.5m kg *10990 9530 *9690 6760 9060 6080 8.00
14.8ft lb *24230 21010 *21360 14900 19970 13400 (26.2)
3.0m kg *12440 9040 9850 6550 8390 5600 8.31
9.8ft lb *27430 19930 21720 14440 18500 12350 (27.3)
1.5m kg 13510 8650 9630 6350 8220 5460 8.34
4.9ft lb 29780 19070 21230 14000 18120 12040 (27.4)
0.0m kg 13270 8450 9510 6230 8530 5640 8.10
0.0ft lb 29260 18630 20970 13730 18810 12430 (26.6)
-1.5m kg *18180 12900 13250 8430 9540 6270 9480 6230 7.54
-4.9ft lb *40080 28440 29210 18580 21030 13820 20900 13730 (24.7)
-3.0m kg *20780 *20780 *16060 13140 *12120 8610 *10470 7620 6.59
-9.8ft lb *45810 *45810 *35410 28970 *26720 18980 *23080 16800 (21.6)

2-9
 Unit : mm
Boom Boom Arm Counterweight Shoe Dozer Outrigger
Model
Type Length Length Weight (kg) Width Front Rear Front Rear
HX340HD Heavy duty 6150 2500 6600 600 - - - -
B

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

A

Load radius At max. reach

Load 3.0 m (9.8 ft) 4.5 m (14.8 ft) 6.0 m (19.7 ft) 7.5 m (24.6 ft) Capacity Reach
point
height m (ft)

7.5m kg *9030 *9030 *9160 8800 6.53

24.6ft lb *19910 *19910 *20190 19400 (21.4)
6.0m kg *9380 *9380 *9020 6920 *9030 6840 7.55
19.7ft lb *20680 *20680 *19890 15260 *19910 15080 (24.8)
4.5m kg *13270 *13270 *10570 9600 *9340 6790 8780 5890 8.17
14.8ft lb *29260 *29260 *23300 21160 *20590 14970 19360 12990 (26.8)
3.0m kg *12080 9080 9870 6560 8140 5430 8.48
9.8ft lb *26630 20020 21760 14460 17950 11970 (27.8)
1.5m kg *13360 8660 9620 6330 7970 5280 8.51
4.9ft lb *29450 19090 21210 13960 17570 11640 (27.9)
0.0m kg *19170 12750 13240 8420 9470 6190 8230 5430 8.27
0.0ft lb *42260 28110 29190 18560 20880 13650 18140 11970 (27.1)
-1.5m kg *15260 *15260 *18450 12780 13180 8360 9450 6180 9080 5960 7.72
-4.9ft lb *33640 *33640 *40680 28180 29060 18430 20830 13620 20020 13140 (25.3)
-3.0m kg *22130 *22130 *16600 12990 *12550 8490 *10580 7190 6.81
-9.8ft lb *48790 *48790 *36600 28640 *27670 18720 *23320 15850 (22.3)
-4.5m kg *12670 *12670 *10370 *10370 5.31
-14.8ft lb *27930 *27930 *22860 *22860 (17.4)

2-10
 Unit : mm
Boom Boom Arm Counterweight Shoe Dozer Outrigger
Model
Type Length Length Weight (kg) Width Front Rear Front Rear
HX340HD Heavy duty 6450 2200 6600 600 - - - -
B

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

A

Load radius At max. reach

Load 3.0 m (9.8 ft) 4.5 m (14.8 ft) 6.0 m (19.7 ft) 7.5 m (24.6 ft) Capacity Reach
point
height m (ft)

7.5m kg *9180 *9180 *9300 8290 6.71

24.6ft lb *20240 *20240 *20500 18280 (22.0)
6.0m kg *9660 *9660 *9060 6840 *9090 6510 7.71
19.7ft lb *21300 *21300 *19970 15080 *20040 14350 (25.3)
4.5m kg *10910 9380 *9420 6680 8440 5640 8.32
14.8ft lb *24050 20680 *20770 14730 18610 12430 (27.3)
3.0m kg *12390 8850 9740 6440 7850 5220 8.62
9.8ft lb *27320 19510 21470 14200 17310 11510 (28.3)
1.5m kg 13290 8460 9500 6220 7700 5090 8.65
4.9ft lb 29300 18650 20940 13710 16980 11220 (28.4)
0.0m kg 13070 8260 9360 6100 7960 5240 8.41
0.0ft lb 28810 18210 20640 13450 17550 11550 (27.6)
-1.5m kg *17750 12670 13050 8250 9370 6100 8770 5750 7.88
-4.9ft lb *39130 27930 28770 18190 20660 13450 19330 12680 (25.8)
-3.0m kg *19890 *19890 *15830 12910 *12210 8410 *9890 6910 6.98
-9.8ft lb *43850 *43850 *34900 28460 *26920 18540 *21800 15230 (22.9)
-4.5m kg *12030 *12030 *9280 *9280 5.54
-14.8ft lb *26520 *26520 *20460 *20460 (18.2)

2-11
 Unit : mm
Boom Boom Arm Counterweight Shoe Dozer Outrigger
Model
Type Length Length Weight (kg) Width Front Rear Front Rear
HX340HD Heavy duty 6450 2500 6600 600 - - - -
B

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

A

Load radius At max. reach

Load 3.0 m (9.8 ft) 4.5 m (14.8 ft) 6.0 m (19.7 ft) 7.5 m (24.6 ft) Capacity Reach
point
height m (ft)

7.5m kg *8730 7950 6.93

24.6ft lb *19250 17530 (22.7)
6.0m kg *9230 *9230 *8630 6900 *8620 6300 7.90
19.7ft lb *20350 *20350 *19030 15210 *19000 13890 (25.9)
4.5m kg *13590 *13590 *10510 9450 *9110 6710 8190 5480 8.49
14.8ft lb *29960 *29960 *23170 20830 *20080 14790 18060 12080 (27.9)
3.0m kg *12030 8900 9750 6450 7620 5060 8.79
9.8ft lb *26520 19620 21500 14220 16800 11160 (28.8)
1.5m kg *13260 8460 9490 6210 7460 4930 8.82
4.9ft lb *29230 18650 20920 13690 16450 10870 (28.9)
0.0m kg *17240 12480 13030 8220 9320 6060 7690 5050 8.58
0.0ft lb *38010 27510 28730 18120 20550 13360 16950 11130 (28.2)
-1.5m kg *18050 12540 12980 8180 9290 6030 8410 5500 8.06
-4.9ft lb *39790 27650 28620 18030 20480 13290 18540 12130 (26.4)
-3.0m kg *21280 *21280 *16340 12750 *12540 8300 *9960 6530 7.19
-9.8ft lb *46910 *46910 *36020 28110 *27650 18300 *21960 14400 (23.6)
-4.5m kg *13020 *13020 *9810 9120 5.80
-14.8ft lb *28700 *28700 *21630 20110 (19.0)

2-12
 6. BUCKET SELECTION GUIDE

General bucket Heavy duty

(without side cutter) Rock heavy duty

Capacity Width Recommendation

Without Weight Tooth 6.15 m 6.45 m

SAE CECE
Type side (20' 2") (21' 2")
Heaped heaped
cutter Boom Boom (HD)
2.20 m 2.50 m 2.20 m 2.50 m 3.20 m
m3 m3 mm kg
EA (7' 3') (8' 2') (7' 3') (8' 2') (8' 2')
(yd3) (yd3) (in) (lb)
Arm Arm Arm Arm Arm
1.44
(1.88)
1.25
(1.63)
1,380
(54.3'')
1,150
(2,540)
5 ● ● ● ● ●
General
bucket
1.74
(2.28)
1.50
(1.96)
1,620
(63.8'')
1,260
(2,780)
6 ● ● ◐ ◐ ■
2.10
(2.75)
1.80
(2.35)
1,910
(75.2'')
1,640
(3,620)
6 ■ ■ ■ ■ ▲
Heavy
1.90
(2.49)
1.65
(2.16)
1,600
(63.0'')
1,780
(3,920)
5 ◐ ◐ ■ ■ ▲
duty
2.30 2.02 1,750 1,915
5 ■ ▲ ▲ ▲ X
(3.01) (2.64) (68.9'') (4,220)
1.44 1.25 1,470 1,600 ●
5 ● ● ● ◐
(1.88) (1.63) (57.9'') (3,530)
1.60
(2.09)
1.39
(1.82)
1,585
(62.4'')
1,680
(3,700)
5 ● ● ◐ ◐ ■
Rock
heavy
1.73
(2.26)
1.50
(1.96)
1,710
(67.3'')
1,750
(3,860)
5 ◐ ◐ ◐ ◐ ■
duty
1.83
(2.39)
1.59
(2.08)
1,765
(69.5'')
1,850
(4,080)
5 ◐ ◐ ■ ■ ▲
1.90
(2.49)
1.65
(2.16)
1,600
(63.0'')
1,980
(4,370)
5 ◐ ■ ■ ■ ▲

● Applicable for materials with density of 2100 kg/m (3500 lb/yd ) or less
◐ Applicable for materials with density of 1800 kg/m3 (3000 lb/yd3) or less
■ Applicable for materials with density of 1500 kg/m3 (2500 lb/yd3) or less
▲ Applicable for materials with density of 1200 kg/m3 (2000 lb/yd3) or less
X Not recommended
- Not available
※ These recommendations are for general conditions and average use.
Work tools and ground conditions have effects on machine performance.
Select an optimum combination according to the working conditions and the type of work that is
being done.
Consult with your local HD Hyundai Construction Equipment dealer for information on selecting
the correct boom-arm
boom arm-bucket
bucket combination.
2-13
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
Triple grouser

Model Shapes

Shoe width mm (in) 600 (24) 700 (28) 800 (32)

Operating weight kg (lb) 33000 (72750) 33570 (74010) 33950 (74850)
HX340HD
Ground pressure kgf/cm2 (psi) 0.64 (9.03) 0.55 (7.88) 0.49 (6.97)
Overall width mm (ft-in) 3280 (10' 9") 3380 (11' 1") 3480 (11' 5")

3) NUMBER OF ROLLERS AND SHOES ON EACH SIDE

Item Quantity
Carrier rollers 2EA
Track rollers 9EA
Track shoes 48EA

2-14
 4) SELECTION OF TRACK SHOE
Suitable track shoes should be selected according to operating conditions.
Method of selecting shoes
Confirm the category from the list of applications in table 2,2 then use table 1 to select the shoe.
Wide shoes (categories B and C) have limitations on applications. Before using wide shoes,
check the precautions, then investigate and study the operating conditions to confirm if these
shoes are suitable.
Select the narrowest shoe possible to meet the required flotation and ground pressure. Application
of wider shoes than recommendations will cause unexpected problem such as bending of shoes,
crack of link, breakage of pin, loosening of shoe bolts and the other various problems.

※ Table 1
Track shoe Specification Category
600 mm triple grouser Standard A
700 mm triple grouser Option B
800 mm triple grouser Option C

※ Table 2
Category Applications Applications
Rocky ground, · Travel at low speed on rough ground with large obstacles such as
A river beds, boulders or fallen trees or a wide range of general civil engineering work
normal soil
Normal soil, · These shoes cannot be used on rough ground with large obstacles such
soft ground as boulders or fallen trees
B
· Travel at high speed only on flat ground
· Travel slowly at low speed if it is impossible to avoid going over obstacles
Extremely soft gound · Use the shoes only in the conditions that the machine sinks and it is
(swampy ground) impossible to use the shoes of category A or B
· These shoes cannot be used on rough ground with large obstacles such
C
as boulders or fallen trees
· Travel at high speed only on flat ground
· Travel slowly at low speed if it is impossible to avoid going over obstacles

2-15
8. SPECIFICATIONS FOR MAJOR COMPONENTS

1) ENGINE
Item Specification
Model HD Hyundai Construction Equipment / HM8.3
4-cycle, turbocharged, charger air cooled,
Type
mechanical controlled diesel engine
Cooling method Water cooled
Number of cylinders and arrangement 6 cylinders, in-line
Firing order 1-5-3-6-2-4
Combustion chamber type Direct injection type
Cylinder bore×stroke 114×135 mm (4.49"×5.31")
Piston displacement 8.3ℓ(506 cu in)
Compression ratio 18 : 1
Gross power 260 Hp (194 kW) at 2200 rpm
Net power 255 Hp (190 kW) at 2200 rpm
Max. power 261 Hp (195 kW) at 2200 rpm
Maximum torque 1150 N·m (848 lbf·ft) at 1300 rpm
Engine oil quantity 26.5ℓ(7.0 U.S. gal)
Wet weight 604 kg (1332 lb)
Starting motor 24 V-7.5 kW
Alternator 24 V-90A

2) MAIN PUMP
Item Specification
Type Variable displacement tandem axis piston pumps
Capacity 2×175 cc/rev
Rated oil flow 2×306ℓ/min (80.8 U.S. gpm / 67.3 U.K. gpm)
Rated speed 1750 rpm

2-16
 3) GEAR PUMP
Item Specification
Type Fixed displacement gear pump single stage
Capacity 15cc/rev
Maximum pressure 40 kgf/cm2 (570 psi)
Rated oil flow 26.3ℓ/min (6.9 U.S. gpm/5.8 U.K. gpm)

4) MAIN CONTROL VALVE

Item Specification
Type 10 spools
Operating method Hydraulic pilot system
Main relief valve pressure 350 kgf/cm2 (4980 psi) [380 kgf/cm2 (5400 psi)]
Overload relief valve pressure 400 kgf/cm2 (5690 psi)
[ ]: Power boost

5) SWING MOTOR
Item Specification
Type Axial piston motor
Capacity 156.9 cc/rev
Relief pressure 300 kgf/cm2 (4270 psi)
Braking system Automatic, spring applied hydraulic released
Braking torque 84.4 kgf·m (610 lbf·ft)
Brake release pressure 36.5 kgf/cm2 (519 psi)
Reduction gear type 2 - stage planetary

6) TRAVEL MOTOR
Item Specification
Type Variable displacement axial piston motor
Relief pressure 350 kgf/cm2 (4980 psi)
Capacity (max / min) 282.6/156.9 cc/rev
Reduction gear type 2-stage planetary
Braking system Automatic, spring applied hydraulic released
Brake release pressure 17 kgf/cm2 (242 psi)
Braking torque 134 kgf·m (969 lbf·ft)

2-17
 7) CYLINDER
Item Specification
Bore dia×Rod dia×Stroke Ø150×Ø105×1480 mm
Boom cylinder
Cushion Extend only
Ø160×Ø110×1685 mm
Bore dia×Rod dia×Stroke
Arm cylinder Ø170×Ø115×1685 mm (Heavy duty boom only)
Cushion Extend and retract
Ø140×Ø100×1285 mm
Bore dia×Rod dia×Stroke
Bucket cylinder Ø145×Ø105×1285 mm (2.2 m arm only)
Cushion Extend only
※ 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) SHOE
Item Width Ground pressure Link quantity Overall width
Standard ☆ 600 mm (24") 0.64 kgf/cm2 (9.03 psi) 48 3280 mm (10' 9")
HX340HD ☆ 700 mm (28") 0.55 kgf/cm2 (7.88 psi) 48 3380 mm (11' 1")
Option
☆ 800 mm (32") 0.49 kgf/cm2 (6.97 psi) 48 3480 mm (11' 5")
☆ : Triple grouser

2-18
 9. RECOMMENDED OILS

HYUNDAI genuine lubricating oils have been developed to offer the best performance and service life for your
equipment. These oils have been tested according to the specifications of HYUNDAI and, therefore, will meet
the highest safety and quality requirements.
We recommend that you use only HYUNDAI genuine lubricating oils and grease officially approved by
HYUNDAI.

Service Ambient temperature˚C(˚F)

Capacity
Kind of fluid
point ℓ (U.S. gal) -50 -30 -20 -10 0 10 20 30 40
(-58) (-22) (-4) (14) (32) (50) (68) (86) (104)
★SAE 0W-40
★SAE 0W-30
Engine
Engine oil★1 26.5 (7.0) SAE 5W-30
oil pan
SAE 10W-30
SAE 15W-40
Swing
11 (2.91) ★SAE 75W-90
drive
Gear oil
Final 7.8×2 SAE 80W-90
drive (2.1×2)
Tank : 210 ISO VG 32
Hydraulic ★3 (55.5)
Hydraulic oil ISO VG 46, HBHO VG 46★3
tank System : 414
(109.4) ISO VG 68

★ASTM D975 NO.1

Fuel tank Diesel fuel 600 (158.5)
ASTM D975 NO.2
Fitting ★NLGI NO.1
(grease Grease As required
nipple) NLGI NO.2
Mixture of
Radiator Ethylene glycol base permanent type (50 : 50)
antifreeze
(reservoir 27 (7.1)
and soft ★Ethylene glycol base permanent type (60 : 40)
tank)
water★2
SAE : Society of Automotive Engineers ★ : Cold region
API : American Petroleum Institute Russia, CIS, Mongolia
ISO : International Organization for Standardization ★1 : Meet or exceeds API CH-4 grade
NLGI : National Lubricating Grease Institute ★2 : Soft water
ASTM : American Society of Testing and Material City water or distilled water
★3 : Hyundai Bio Hydraulic Oil
※ Using any lubricating oils other than HYUNDAI genuine products may lead to a deterioration of performance
and cause damage to major components.
※ Do not mix HYUNDAI genuine oil with any other lubricating oil as it may result in damage to the systems of
major components.
※ Do not use any engine oil other than that specified above.
※ For HYUNDAI genuine lubricating oils and grease for use in regions with extremely low temperatures, please
contact HYUNDAI dealers.

2-19