wsm STW37 - 2 Servicing Specifications

HYDRAULIC SYSTEM
STW34, STW37, STW40, WSM
8-S3
2. SERVICING SPECIFICATIONS
HYDRAULIC PUMP
CONTROL LINKAGE (3P HYDRAULIC SYSTEM)
RELIEF VALVE (3P HYDRAULIC SYSTEM)
Item Factory Specification Allowable Limit
Hydraulic Pump (Power Steering)
Condition
• Engine Speed:
Approx. 2700 min
-1
(rpm)
• Rated pressure:
0.7 to 11.7 MPa (109.1 to 119.3 kgf/cm
2
,
1552 to 1697 psi)
• Oil Temperature:
40 to 60 °C (104 to 140 °F)
Delivery at
No Pressure
Delivery at
Rated Pressure
18.6 L/min.
4.91 U.S.gals/min.
4.09 Imp.gals/min.
18.2 L/min.
4.81 U.S.gals/min.
4.00 Imp.gals/min.
–
15.2 L/min.
4.02 U.S.gals/min.
3.34 Imp.gals/min.
Hydraulic Pump (3P Hydraulic System)
Condition
• Engine Speed:
Approx. 2700 min
-1
(rpm)
• Rated Pressure:
16.67 MPa (170 kgf/cm
2
, 2417.9 psi)
• Oil Temperature:
40 to 60 °C (104 to 140 °F)
Delivery at
No Pressure
Delivery at
Rated Pressure
30.6 L/min.
8.08 U.S.gals/min.
6.73 Imp.gals/min.
30.0 L/min.
7.93 U.S.gals/min.
6.60 Imp.gals/min.
–
25.2 L/min.
6.66 U.S.gals/min.
5.54 Imp.gals/min.
Housing Depth of Scratch – 0.09 mm
0.0035 in.
Bushing to Gear Shaft
•Gear Shaft
• Bushing
Clearance
O.D.
I.D.
0.020 to 0.081 mm
0.0008 to 0.0032 in.
14.970 to 14.980 mm
0.5894 to 0.5898 in.
15.000 to 15.051 mm
0.5906 to 0.5926 in.
0.15 mm
0.0059 in.
–
–
Side Plate Thickness 2.48 to 2.50 mm
0.0976 to 0.0984 in.
2.40 mm
0.0945 in.
Item Factory Specification Allowable Limit
Position Control Lever Operating Force 20 to 50 N
2.1 to 5.0 kgf
4.5 to 11 lbf
–
Lift Arm
Condition
• Engine Speed:
Maximum
• Oil Temperature:
40 to 60 °C (104 to 140 °F)
Free Play 12 to 17 mm
0.48 to 0.66 in.
–
Item Factory Specification Allowable Limit
Relief Valve
Condition
• Engine Speed:
Maximum
• Oil Temperature:
40 to 60 °C (104 to 140 °F)
Setting Pressure 16.7 to 17.2 MPa
170 to 175 kgf/cm
2
2420 to 2480 psi
–
KiSC issued 11, 2014 A