Hydraulic systems, Working pressure, psi first layer line pull, lbs, Flow, gpm line speed, fpm first layer – Ramsey Winch HD-234 User Manual
Page 7

HYDRAULIC SYSTEMS
Refer to performance charts, below, to properly match your hydraulic sys-
tem to the HD-234 winch performance. The charts consist of:
1. Line pull (lbs.) first layer vs. working pressure (PSI). STATIC (solid line)
refers to hoisting a suspended load from rest; DYNAMIC (dashed line)
refers to maintaining the motion of a moving load.
2. Line speed, first layer (FPM) vs. gallons per minute (GPM).
Performance based on a motor displacement of 3.6 cubic inches with
15 GPM maximum flow rate.
HD-234 PERFORMANCE
8,000 LB. DUTY RATING - 34:1 GEAR RATIO
7
WORKING PRESSURE, PSI
FIRST LAYER
LINE PULL, LBS
3,000
2,000
1,000
0
5,000
4,000
7,000
6,000
8,000
DYNAMIC
2000
1000
STATIC
3000
FLOW, GPM
LINE SPEED, FPM
FIRST LAYER
0
0
5
5
10
15
20
10
15
25
30
35
PUMP
LOW PRESSURE LINES
RESERVOIR
FLUID
FLUID FILTER
RELIEF VALVE
CONTROL VALVE
EMERGENCY STOP
PUMP INLET LINE
(SUCTION)
3 POSITION 4 WAY
CYLINDER SPOOL
WINCH MOTOR
HYDRAULIC
(.75 I.D. MINIMUM)
LOW PRESSURE LINES
HIGH PRESSURE LINES
(.50 I.D. MINIMUM)