Ramsey Winch H-800 (JERR-DAN) - Manual (Page 7)

HYDRAULIC SYSTEM REQUIREMENTS
Refer to the performance charts below, to properly match your hydraulic system to H-800
Dow-Lok® winch performance. The charts consist of :
(1) Line pull (lb.) first layer vs. working pressure (PSI). STATIC (solid line) refers to hoisting
a suspended load from rest; DYNAMIC (dotted line) refers to maintaining the motion of a
moving load.
(2) Line speed, first layer (FPM) vs. Flow, gallons per minute (GPM).
Performance based on a motor displacement of 14.9 cubic inches with 30 GPM maximum
flow rate. See page 16 for motor port size.
H-800 PERFORMANCE
20,000 LB. DUTY RATING
40:1 GEAR RATIO
TYPICAL HYDRAULIC LAYOUT
WORKING PRESSURE, PSI
LINE PULL, LBS
FIRST LAYER
0 2000 1000 3000
FLOW, GPM
10
LIN
E
SPEED, FPM
FIRST LAYER
0
0
10
5
15
20
20 30
6,000
8,000
10,000
12,000
14,000
16,000
18,000
20,000
STATI
C
DYNAM
IC
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