Ramsey Winch H-89 - Manual (Page 12)

12
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. “A” port motor control valve rated for a maximum flow of 114 LPM (30 GPM).
4. Hydraulic motor with a volume of 244 cc (14.9 cu in)/rev.
5. Relief valve set to 151,7 bar (2200 psi) which is the rated capacity limiter.
6. Flow rate of 114 LPM (30 GPM) maximum.
7. 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.
Note: Some models are sold without the hydraulic motor and “A” port motor control valve.
It is the User’s responsibility to meet the following meet the Hydraulic System
Requirements.
(RATED CAPACITY LIMITER)
151,7 bar (2,200 PSI)
114 LPM (30 GPM)
33 mm (1.31 in) I.D. MINIMUM
I.D. MINIMUM
22 mm (.88 in)
PUMP
LOW PRESSURE LINE
HIGH PRESSURE LINE
RATED LOAD:
PRESSURE AT
MAX. FLOW &
(MOTOR SPOOL)
4 WAY VALVE
3 POSITION
SYSTEM RELIEF
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.
A PORT
MOTOR CONTROL VALVE
TYPICAL HYDRAULIC LAYOUT
WINCH MOTOR
HYDRAULIC
151,7 bar (2,200 PSI)
12/28/2013