Ramsey Winch 300/H-300 RAM-LOK - Manual (Page 6)

6
HYDRAULIC SYSTEMS
Refer to the performance charts, below, to properly match your hydraulic system to the H-300 Series winch perform-
ance. The charts consist of:
1. Line speed, first line (F.P.M.) vs. gallons per minute (G.P.M.) and
2. Line pull (lbs.) first layer vs. working pressure (P.S.I.). STATIC (solid line) refers to hoisting a suspended load
from rest; DYNAMIC (dotted line) refers to maintaining the motion of a moving load.
Performance based on a motor displacement of 4.5 cubic inches with 15 GPM maximum flowrate. See page 13 for
motor port size.
LI
NE PULL,
LBS.,
FIRST
LAYER
WORKING PRESSURE, PSI
0
1,000
1500 1000 500 2000
LI
NE
SPEED, FT/MIN, FI
RST LAYER
GALLONS PER MINUTE
5
0
0
5 10 15
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
STATI
C
DYNAMIC
10
15
H-300 PERFORMANCE
9,000 LB. DUTY RATING
60:1 GEAR RATIO
LI
N
E
P
U
LL,
LB
S
.,
FI
R
S
T LAYER
WORKING PRESSURE, PSI
0
1,000
1500 1000 500 2000
LINE SPEED, FT/MI
N, FIRST LAYER
GALLONS PER MINUTE
5
0
0
5 10 15
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
ST
ATIC
DYNAMIC
10
15
H-346 PERFORMANCE
9,000 LB. DUTY RATING
46:1 GEAR RATIO
20