Rayco RG25HD, Оператор, Сервис, Техническое обслуживание, Каталог запасных частей

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RG25DH Operation • Service • Maintenance • Parts Manual
46
7
Light Duty Hydrostatic
Cam Ring
(for varying pump displacement)
Control Lever
(Customer
Supplied)
Check Valves
Ball Piston
Pump
Variable
Displ.
Ball Piston
Motor
Fixed
Displacement
High Pressre Oil
Low Pressure Oil Return
Dump Valve (holds check
valves open for free wheeling)
F
N
R
Flow Diagram
Model 6 and 7
Dimensions
Model 6 and 7
This diagram shows flow of fluid through an
internal closed loop between the pump and
the motor. The flow is directed by the pump
to the motor and then back to the pump.
Because of leakage, the amount of fluid driven
back by the motor is slightly less than that
required by the pump. Check valves on the
inlet side of the pump are open to the
reservoir enabling the pump to draw fluid as
needed.
Speed control is achieved by changing the
amount of oil delivered by the variable
displacement pump to the fixed displacement
motor by moving the control lever.
Dump
Valve
Actuator
59,9
[2.36]
44,63
[1.757]
120,65
[4.75]
Dia. Ref.
for Mtg.
OIL LEVEL COLD
119,9
[4.72]
(2
Places)
59,9
[2.36]
85,9
[3.38]
17,3 [.68]
19,3/17,3
[.76/.68]
124,5/121,7
[4.90/4.79]
154,9
[6.10]
18,56/18,31
[.731/.721]
17,010/16,997
[.6698/.6692]
27,94 [1.100]
29,2 [1.15]
39,24/37,97
Taper Per Meter
[1.545/1.495
Taper Per Foot]
10,4 [.41] Dia. Thru
for 3/8 inch Dia. Bolts
(4) Torque to 27Nm
[20 lb-ft]
3/8-16 UNC Thread x 14,7 [.58] Min.
Max. Allowable Hold Down
Torque of 27 Nm 20 lb-ft]
15,874/15,862
[.6250/.6245] Dia.
222,3 [8.75]
89,66
[3.530]
55,12
[2.170]
1,52 x 16,07/15,87
[.060 x .633/.625]
Dia.
21,01 [.827]
22,14
[.872]
14,2
[.56]
18,56/18,31
[.731/.721]
69,82/69,77
[2.749/2.747]
Pilot Dia.
17,010/16,997
[.6697/.6692]
1/8 x 1/2 Woodruff Key (#3)
Provided by Customer
1/8 x 1/2
Woodruff
Key (#3)
Provided by
Customer
Mounting Surface
Bleed/Drain (2)
Straight Thread – 6 Port
O-ring Boss (for 3/8 inch
nominal tubing OD)
per SAE -J514 Spec.
15,87 [.625]
48,3 [1.90]
70,0[2.76] Dia. Max.
66,70/64,90
[2.625/2.555]
Control Shaft
1,70/1,44
[.067/.057]
1/4-20 UNC
Thread x 12,7
[.50 ] Deep
Input Rotation
Optional
110,2/106,7 [4.34/4.20].
89,2/87,1 [3.51/3.43]
119,9 [4.72]
(2 Places)
79,5 [3.13]
Max.
Max. recommended control angle 13 °
for optional output rotation
(stops must be provided by
customer, on linkage).
Max. recommended control angle 13 °
for optional output rotation
(stops must be provided by
customer, on linkage).
Troubleshooting
5
Light Duty Hydrostatic
Internal Features Model 6
Displacement (Theoretical)
Pump (Variable) ............... 0 - 7,6 cm 3 /r [0 - .465 in 3 /r]
Motor (Fixed) ............................ 12,6 cm
3
/r [.767 in
3
/r]
Speed
Input (Maximum) ........................................ 3600 RPM
Output .................................................... 0 – 2150 RPM
Kw/Horsepower, Input (Max.)
@ 3600 RPM .............................................. 3 Kw [4 HP]
Torque, Output
Continuous ....................................... 14 Nm [120 lb-in]
Intermittent ...................................... 20 Nm [180 lb-in]
Peak ................................................. 27 Nm [240 lb-in]
Operating Temperature (Max. Cont.) ....... 82 ° C [180 ° F]
0 400
3 [30]
7 [60]
10 [90]
14 [120]
17 [150]
20 [180]
24 [210]
27 [240]
Input Speed — 3600 RPM
Temperature — 77 ° - 82 ° C [170 ° - 180 ° F]
Intermittent Use Only
800 1200
Output — RPM
Output Torque
Nm [lb-in]
Output Torque vs. Output Speed
1600 2000
3 Kw [4 HP] Input
Performance Data
Models 6 and 7
Reservoir
Ball Piston
Hydraulic
Motor
(Fixed Displacement)
Ball Piston
Hydraulic Pump
(Variable Displacement)
Input
Shaft
Cam Ring
(for Varying Pump Displacement
and Direction of Flow)
Dump
Valve
Control
Shaft
Pintle
Output
Shaft
Wide Band
Neutral Optional