Hydraulic System Requirements; Typical Hydraulic Layout - Ramsey Winch H-89 Bedienungsanleitung

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 206,8 bar (2825 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.
HYDRAULIC
WINCH MOTOR

TYPICAL HYDRAULIC LAYOUT

A PORT
MOTOR CONTROL VALVE
PROVIDED BY USER
HIGH PRESSURE LINE
22 mm (.88 in)
I.D. MINIMUM
3 POSITION
4 WAY VALVE
(MOTOR SPOOL)
*
REQUIRED ONLY IF REMOTE-OPERATED CONTROL VALVE IS USED. SEE 2B
IN HYDRAULIC SYSTEMS REQUIREMENTS. NOT REQUIRED FOR A
DIRECT-OPERATED MANUAL VALVE.
12
LOW PRESSURE LINE
33 mm (1.31 in) I.D. MINIMUM
*
DUMP VALVE
PUMP
MAX. FLOW &
PRESSURE AT
RATED LOAD:
114 LPM (30 GPM)
151,7 bar (2,200 PSI)
*
E-STOP SWITCH
SYSTEM RELIEF
151,7 bar (2,200 PSI)
(RATED CAPACITY LIMITER)