LU(H4SO)-2
LUBRICATION
General Description
1. General Description
A: SPECIFICATIONS
Lubrication method Forced lubrication
Oil pump
Pump type Trochoid type
Number of teeth
Inner rotor 9
Outer rotor 10
Outer rotor diameter × thickness 78 × 7 mm (3.07 × 0.28 in)
Tip clearance between inner and outer rotor
STANDARD 0.04 — 0.14 mm (0.0016 — 0.0055 in)
LIMIT 0.18 mm (0.0071 in)
Side clearance between inner rotor and pump
case
STANDARD 0.02 — 0.07 mm (0.0008 — 0.0028 in)
LIMIT 0.12 mm (0.0047 in)
Case clearance between outer rotor and pump
case
STANDARD 0.10 — 0.175 mm (0.0039 — 0.0069 in)
LIMIT 0.20 mm (0.0079 in)
Capacity at
80°C (176°F)
600 rpm
Discharge
pressure
98 kPa (1.0 kg/cm
2
, 14 psi)
Discharge
quantity
3.2 2 (3.4 US qt, 2.8 Imp qt)/min.
5,000 rpm
Discharge
pressure
294 kPa (3.0 kg/cm
2
, 43 psi)
Discharge
quantity
32.6 2 (34.4 US qt, 28.7 Imp qt)/min.
Relief valve operation pressure
490 kPa (5.0 kg/cm
2
, 71 psi)
Oil filter
Type Full-flow filter type
Filtration area
800 cm
2
(124 sq in)
By-pass valve opening pressure
160 kPa (1.63 kg/cm
2
, 23.2 psi)
Outer diameter × width 68 × 65 mm (2.68 × 2.56 in)
Oil filter to engine thread size M 20 × 1.5
Oil pressure
switch
Type Immersed contact point type
Working voltage — wattage 12 V — 3.4 W or less
Warning light activation pressure
14.7 kPa (0.15 kg/cm
2
, 2.1 psi)
Proof pressure
More than 981 kPa (10 kg/cm
2
, 142 psi)
Oil capacity (at replacement) 4.0 2 (4.2 US qt, 3.5 Imp qt)
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