Ramsey Winch RPH 42,2 - Manual (Page 7)

7
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.
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 required. 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 144,7 bar (2100 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.
5. Hydraulic fluid with a viscosity between 20-43 cSt (100-200 SUS). Maximum operating temperature 85C (180F).
Cleanliness level of ISO 17-14 or better.
(RATED CAPACITY LIMITER)
144,7 bar (2100 PSI)
56,7 LPM (15 GPM)
19 mm (.75 in) I.D. MINIMUM
I.D. MINIMUM
12,7 mm (.50 in)
TYPICAL LAYOUT
PUMP
LOW PRESSURE LINE
HIGH PRESSURE LINE
RATED LOAD:
PRESSURE AT
MAX. FLOW &
(MOTOR SPOOL)
4 WAY VALVE
3 POSITION
144,7 BAR (2100 PSI)
SYSTEM RELIEF
PORT
BRAKE
MOTOR
WITH BRAKE RELEASE SHUTTLE
DUAL-A & B PORT CONTROL
PROVIDED BY USER
DUMP VALVE
*
*
E-STOP SWITCH
REQUIRED ONLY IF REMOTE-OPERATED CONTROL VALVE IS USED. SEE 2B
*
IN HYDRAULIC SYSTEMS REQUIREMENTS. NOT REQUIRED FOR A
DIRECT-OPERATED MANUAL VALVE.
0
1,5 (5)
4,6 (15)
0
BASED ON 408 cc (24.9 cu in) MOTOR
PERFORMANCE CHARTS
7,6 (25)
10,7 (35)
4,4 (1000)
8,9 (2000)
13,3 (3000)
17,8 (4000)
22,2 (5000)
26,7 (6000)
31,1 (7000)
35,6 (8000)
0 70,0 137,9 172,4 103,4 34,5
(0) (1000) (2000) (2500) (1500) (500)
40,0 (9000)
42,2 (9480)
0 18,9 37,9 56,7
(0) (5) (10) (15)
3,0 (10)
6,1 (20)
9,1 (30)
WORKING PRESSURE bar (PSI) AT 56,7 LPM (15 GPM)
LI
NE
PU
LL
-F
IR
ST LA
YE
R
k
N
(l
b)
LI
NE SPEED-
FIR
ST L
A
YER
M
P
M
(FPM
)
FLOW LPM (GPM)