Komatsu PC750-7 Shop Manual page 37

GENERAL
Machine model
Serial Number
Model
Type
No. of cylinders – bore × stroke
Piston displacement
Flywheel horsepower
Max. torque
High idle
Low idle
Min. fuel consumption
Starting motor
Alternator
Battery
Radiator core type
Carrier roller
Track roller
Track shoe
Type
Delivery
Set pressure
Type × No.
Control method
Travel motor
Swing motor
Cylinder type
Inside diameter of cylinder
Outside diameter of piston rod
Stroke
Max. distance between pins
Min. distance between pins
Hydraulic tank
Hydraulic filter
Hydraulic cooler
1. With cushion on head side
PC750, 800-7
4-cycle, water-cooled, in-line, vertical, direct injection,
mm
l {cc}
kW/rpm {HP/rpm}
Nm/rpm {kgm/rpm}
rpm
rpm
g/kWh {g/HPh}
l /min
2
MPa {kg/cm }
Boom (
Double-acting piston
mm
mm
mm
mm
mm
2. With cushion on bottom side
PC750LC-7
20001 and up
SAA6D140E-3
with turbocharger and aftercooler (air cooled)
6 – 140 × 165
15.24 {15,240}
338/1,800 {454/1,800}
2,138/1,350 {218/1,350}
1,980
825
196 {146.4}
24V, 11 kW
24V, 50A
12V, 170 Ah × 2
CWX-4
3 on each side
9 on each side
Assembly-type double grouser, 51 on each side
Variable displacement piston type:
HPV95+95, HPV95+95, gear type: SAR80+8
Piston type: 490+490, gear type: 136+16
Piston type: 31.4 {320}, gear type: 2.9 {30}
4-spool + 5-spool type × 1
Hydraulic
Piston type (with brake valve, shaft brake):
× 2 (MSF-340VP-EH11)
Piston type (with safety valve, shaft brake):
× 2 (KMF125AB-5)
1 1, 2
) Arm (
Double-acting piston
200 200
140 140
1,950 2,250
4,880 5,525
2,930 3,275
Box-shaped, sealed with breather
Tank return side
Air cooled (J4)
SPECIFICATIONS
1
) Bucket ( )
Double-acting piston
180
120
1,610
3,990
2,380
01-7
(7)