Demo Video
Description
This 1991-built Komatsu PC38UU is a professionally reconditioned mini excavator with its 3,945 Kg (8,699 pounds) operating weight. It only has 4,210 hours, and in great running condition with normal wear and tear as shown on our transparent photos and demonstration video. The machine is powered by a Yanmar-manufactured diesel engine (3D84-1GA) which is capable of delivering 30 HP. This unit has been modified to adopt Caterpillar (S.A.E) control pattern by default. Reverting to original Komatsu (Japanese) control pattern is also possible via a built-in quick shifter.
This unit has been thoroughly serviced with new hydraulic fluids, new engine oils, new coolant with antifreeze, and new filters (air, fuel, and oil). We have upgraded the excavator with new foot-pedal-controlled hydraulic thumb, new seat & seat belt, new starting battery, new LED headlight, new decals, and vivid Caterpillar-yellow paint. As required by U.S. CBP importing requirements, this unit has undergone strict fumigation and steam cleaning.
Product Features
This model has a highly-sought-after two-piece offset boom which is particularly useful for tight workspace applications with limited swing. If you are working in a tight alley, the boom can knuckle off to the right or left so that the machine can dig in line with one of the tracks up next to a structure. This model is qualified as a zero-tail swing machine with its 1610-mm upper body, 1840-mm overall width, and a tail swing radius of 900 mm (2'11"). This unit also comes with dual speed travel with high speed of 1.9 mph and low speed of 1.1 mph.
With Japanese ingenuity of applying sound-absorbing material to various parts of the machine, low noise performance comparable to that of a passenger car has been achieved. This model is designed for night work and urban areas such as schools and hospitals with noise level rated at 57 dBA @ 30 meter (98'5") and 68 dBA @ 7 meter (23'0"). To operator's ears, noise exposure is rated at only 78 dBA.
Product Manuals
- Operation & Maintenance: Available for Customer Only
- Shop & Repair: Not Available
- Excavator Parts: Available for Customer Only
- Engine Parts: Available for Customer Only
General
- Make: Komatsu
- Model: PC38UU
- Serial #: 2157
- Track: Rubber (used)
- Year Built: 1991
- Hour Meter: 4,210
- Origin: Japan
- Operating weight: 3,945 Kg (8,699 lbs)
- Bucket digging force: 2,700 Kg (5,952 lbs)
- Max ground pressure: 0.24 Kg/cm2 (3.4 psi)
- Swing speed: 8.5 rpm
- Swing max slope angle: ? deg.
- Travel speed: 3.0 kmh (1.9 mph) & 1.7 kmh (1.1 mph)
- Gradeability: 30 deg.
Engine
- Make: Komatsu
- Serial #: 43509
- Fuel: Diesel
- Model: 3D84-1GA (4-cycle, water-cooled)
- No. of cylinders - bore x stroke: ?
- Piston displacement: 1.413 L (86.2 cu.in.)
- Firing order: ?
- Flywheel horsepower: 30 HP @ 2,700 RPM
- Max torque: ? Kgm @ ? rpm
- Max speed at no load (high idling) : ? rpm
- Min speed at no load (low idling): ? rpm
- Min fuel consumption: ? g/HP.h
- Alternator: ?
- Starting Motor: ?
- Battery: ?
OEM Working Range
Arm length | No Data |
---|
Arm length | No Data | |
---|---|---|
a | Maximum digging height | 5520 mm (18'1") |
b | Maximum dumping height | 4050 mm (13'3") |
c | Maximum digging depth | 3200 mm (10'6") |
d | Maximum vertical digging depth | 2230 mm (7'4") |
e | Maximum digging reach | 4840 mm (15'11") |
f | Maximum reach–ground level | 4730 mm (15'6") |
g | Minimum swing radius | 900 mm (2'11") |
h | Maximum blade lift | 320 mm (1'1") |
i | Maximum blade depth | 220 mm (0'9") |

Recorded Dimensions
- Overall Length: 4,840 mm (15'11")
- Overall Width: 1,850 mm (6'1")
- Overall Height: 2,400 mm (7'10")
- Backfill Blade Width: 1,850 mm (6'1")
- Backfill Blade Height: 330 mm (1'1")
- Bucket Width: 545 mm (1'9")
- Thumb Width: 285 mm (0'11")
- Track Width: 400 mm (1'4")
- Track Length: 2,355 mm (7'9")
- Track Standard: 400mm (W) x 72.5mm (P) x 70 (L)
- Boom Cylinder: 685 mm (27.0")
- Arm Cylinder: 608 mm (23.9")
- Bucket Cylinder: 520 mm (20.5")
- Thumb Cylinder: 286 mm (11.3")
OEM Dimensions
A | 4840 mm (15'11") | Overall length |
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A | 4840 mm (15'11") | Overall length |
---|---|---|
B | 2400 mm (7'10") | Overall height |
C | 1840 mm (6'0") | Overall width |
D | 550 mm (1'10") | Ground clearance, counterweight |
E | 305 mm (1'0") | Ground clearance, min. |
E2 | 350 mm (1'2") | Backfill blade height |
F | 900 mm (2'11") | Tail swing radius |
G | 1905 mm (6'3") | Track length on ground |
H | 2390 mm (7'10") | Track length |
I | 1440 mm (4'9") | Track gauge |
J | 400 mm (1'4") | Shoe width |
K | 1610 mm (6'3") | Machine upper width |
L | No Data | Rear End Radius |
M/N | No Data | Boom swing angle |
O | 630 mm (2'1") | Bucket offset LH |
P | 780 mm (2'7") | Bucket offset RH |
