OM-05450
GHS SERIES
PAGE E-14
MAINTENANCE AND REPAIR
40 MIN.
1.23 FULLY OUT
100
.93
125
.74
150
.51
170 MAX.
.37 FULLY IN
40 MIN.
1.23 FULLY OUT
75
.71
90 MAX.
.37 FULLY IN
35 MIN.
1.17 FULLY OUT
75
.87
100
.68
125
.51
150 MAX.
.31 FULLY IN
30 MIN.
1.17 FULLY OUT
50
.88
70 MAX.
.31 FULLY IN
100 MIN.
.60 FULLY OUT
125
.51
150
.42
175
.34
200
.26
230 MAX.
.16 FULLY IN
CRACKING
PRESSURE
(PSI)
GC, GF,
GH, GJ
PUMP
HYDRAULIC
SIZE
SINGLE
SPRING
OPTION CODE
DOUBLE
SPRING
OPTION CODE
DIMENSION
“A” (INCHES)
Fig. E‐7)
CRACKING
PRESSURE
(PSI)
45 MIN.
.60 FULLY OUT
50
.57
75
.47
100
.22
130 MAX.
.16 FULLY IN
DIMENSION
“A” (INCHES)
Fig. E‐7)
25U
25U
25U
25V
25V
25V
JG, JJ,
JL, JP,
NK, NM,
NP
RM, RP,
RR, RS
100 MIN.
.60 FULLY OUT
125
.51
150
.42
175
.33
200
.23
225 MAX.
.16 FULLY IN
DC, DE
50 MIN.
.60 FULLY OUT
75
.47
100
.33
130 MAX.
.16 FULLY IN
25U
25V
Table E‐4. Cracking (Valve Opening) Settings ( Denotes Factory Setting)
After adjustment, tighten the jam nut (D) flush
against the bonnet.
Place the optional warning tag (10AR) between the
bonnet and the cap (10AN). Install the cap, and
tighten until fully seated against the bonnet.
Relief Valve (10) Installation
Lubricate and install the gaskets or O‐ring(s) (10C)
on the housing assembly (04A) or the head assem
bly (01A). Secure the relief valve (10A) with the
capscrews (B).
