Komatsu AX20 - Service Data (Continued); BX - Gasoline;LPG Engine Service Data

28. SERVICE DATA
4-7
28.2 BX SERVICE DATA – GASOLINE/LPG ENGINE
* Pneumatic tire lift truck only
Component Inspection item Unit
FG20(C)/25(C)-14
FG20S/25S-14
FG20H/25H/30(C)(H)-14
FG20SH/25SH/30SH-14
Engine
Engine
Engine model –
NISSAN K21
(4-cyl.)
NISSAN K25
Idling speed rpm 750
Maximum speed rpm 2,950 2,900
Compression psi/rpm
Gasoline/Dual-fuel: 178/250
LPG: 185/250
Lubricating oil
cooling system
Fan belt deflection in. (mm)
0.43 - 0.51 (11 - 13)
finger pressure: 98 N (10 kgf)
Fuel system
Injection timing BTDC deg. ECU control
Injection order – 1 - 3 - 4 - 2
Injection pressure psi 50
LPG max. tank pressure psi 250
LPG dry gas pressure psi 4.6
Intake/exhaust
system
Valve clear-
ance
Intake
in. (mm) 0.015 (0.38) Warm
Exhaust
Electric system
Spark plug gap in. (mm) 0.031 - 0.035 (0.8 - 0.9)
Spark plug type – NGK: FR2A-D
Ignition timing (gas)
Ignition timing (LPG)
BTDC deg. ECU control
Firing order – 1 - 3 - 4 - 2
Travel system
Tires
Tire inflation
pressure
Front wheels
psi (MPa)
100 (0.69) (7.0 kgf/cm
2
)*
Rear wheels
Lug (hub) nuts
Tightening
torque
Front wheels
lbs/ft (Nm)
217 - 361 (294 - 490)
(30 - 50 kgfm)
Rear wheels
145 - 181 (196 - 245)
(20 - 25 kgfm)*
Rim mating nuts
Tightening
torque
Front wheels
145 - 217 (196 - 294)
(20 - 30 kgfm)*
(excluding 3.0 ton lift truck)
Rear wheels
65 - 91
(88 - 123) (9.0 - 12.5 kgfm)
Steering, braking system
Steering wheel Play
in. (mm)
1.2 - 2.4 (30 - 60)
Clutch pedal Play 0.12 - 0.20 in. (3 - 5 mm)
Inching pedal
Play 0.08 - 0.12 (2 - 3)
Interconnected travel 1.85 - 2.09 (47 - 53)
Brake pedal
Play
in. (mm)
0.51 - 0.67 (13 - 17)
Pedal height when depressed 3.54 - 3.94 (90 - 100)
Brake
Parking brake operating force ft/lb (N) 55 (245) (25 kgf)
Tightening torque for back
plate mounting bolts
lbs/ft (Nm)
108 - 146 (147 - 196)
(15 - 20 kgfm)
Loading equipment
Forks
Fork thickness (at base of
forks)
in. (mm)
2.0 ton truck: Min. 1.42 (36)
2.5 ton truck: Min. 1.58 (40)
3.0 ton truck: Min. 1.58 (40)
Chain Length over 17 links Max. 13.1 (332)
Hydraulic system Relief pressure psi (MPa)
2,610.7 (18) (185 kgf/cm
2
)