Hydraulic Systems; Hydraulic System Requirements; Typical Layout; Performance Charts - Ramsey Winch HD-P 42 Originalanleitung

Refer to the performance charts below to properly match your hydraulic system to the winch
performance. The charts consist of: (1) Line Pull first layer kN (lb) vs. Working Pressure bar (PSI).
(2) Line Speed, first layer MPM (FPM) vs. flow LPM (GPM).

HYDRAULIC SYSTEM REQUIREMENTS

1.
Motor spool (open center) control valve
2. Emergency Stop:
A. If winch is controlled by a direct-operated manual valve, that valve serves as the E-stop.
B. If a remote operated control valve is used, a solenoid-operated hydraulic dump
valve, normally open to tank, and an emergency stop switch (to open the dump valve) is re-
quired. The E-stop switch is to be normally closed and have a red, resettable push button
actuator with a yellow background. The E-stop switch must be easily accessible to the
operator.
3. Relief valve set to 137,9 bar (2000 psi) which is the rated capacity limiter.
4.
Flow rate of 56,7 LPM (15 GPM) maximum. Do not exceed 75,7 LPM (20 GPM) or motor and winch
may be damaged.
operating temperature 85C (180F). Cleanliness level of ISO 17-14 or better.

TYPICAL LAYOUT

MOTOR
BRAKE
PORT

PERFORMANCE CHARTS

10,7 (35)
9,1 (30)
7,6 (25)
6,1 (20)
4,6 (15)
3,1 (10)
1,5 (5)
0 (0)
(0)

HYDRAULIC SYSTEMS

5.
Hydraulic fluid with a viscosity between 20-43 cSt (100-200 SUS). Maximum
DUAL-A & B PORT CONTROL
WITH BRAKE RELEASE SHUTTLE
A
B
0 18,9 37,9 56,7
(5) (10) (15)
FLOW LPM (GPM)
BASED ON 408cc (24.9 cu in) MOTOR
PROVIDED BY USER
LOW PRESSURE LINE
HIGH PRESSURE LINE
19 mm (.75 in) I.D. MINIMUM
12,7 mm (.50 in)
I.D. MINIMUM
*
DUMP VALVE
PUMP
3 POSITION
4 WAY VALVE
SYSTEM RELIEF
(MOTOR SPOOL)
137,9 BAR (2000 PSI)
(RATED CAPACITY LIMITER)
*
REQUIRED ONLY IF REMOTE-OPERATED CONTROL VALVE IS USED. SEE 2B
IN HYDRAULIC SYSTEMS REQUIREMENTS. NOT REQUIRED FOR A
DIRECT-OPERATED MANUAL VALVE.
42,0 (9480)
40,0 (9000)
34,9 (8000)
31,1 (7000)
26,7 (6000)
22,2 (5000)
17,8 (4000)
13,3 (3000)
8,9 (2000)
4,4 (1000)
0
0 34,5 68,9 103,4
(0) (500) (1000) (1500)
WORKING PRESSURE bar (PSI) AT 56,7 LPM (15 GPM)
6
MAX. FLOW &
PRESSURE AT
RATED LOAD:
56,7 LPM (15 GPM)
137,9 bar (2000 PSI)
*
E-STOP SWITCH
137,9 172,4
(2000) (2500)