RIDGID BW-1790 User Manual
Ridge Tool Company/Elyria, Ohio, U.S.A.
62
Hydraulic Hand Pump, H-18
Service Notes for H-18
HIGH PRESSURE RELIEF VALVE SETTING
The High Pressure Relief Valve on this pump is factory preset at 9,400 to 10,500 PSI. The setting can be checked or reset as follows:
A. Attach a 15,000 PSI gauge to outlet port of pump.
B. Operate pump cautiously to build pressure while watching gauge.
C. If maximum pressure exceeds 10,500 PSI:
1. Stop pumping and open release valve.
2. Turn adjusting plug, Ref. 34, counterclockwise 1/2 turn and retest.
D. If maximum pressure is less than 9,400:
1. Turn adjusting plug clockwise 118 turn and retest.
E. Continue Step “C” or “D” until specified range is achieved. Lock in place with jam nut, Ref. 33.
Single-Stage, Two-Way Valve
Ref. Catalog
No.
No.
Description
— 24542 H-18 Hand Pump
1 24497* Snap Ring (6)
2 24492 Pin
3 24202 Pin
4 24222 Handle Head
5 24502 Handle
6 24272 Hand Grip
7 24487 Lever Crank
8 24127 Piston
9 24132 Packing Nut
10 24137* Back-up Ring
11 24142* O-Ring
12 24177 Spring Stop Bolt
13 24147* Copper Washer
14 24182* Spring
15 24187* Steel Ball (6 mm)
16 24192* Spring
17 24152* Steel Ball (3) (4.8 mm)
18 24227* Copper Washer
19 24162 Valve Stem
Ref. Catalog
No.
No.
Description
20 24157* O-Ring (2)
21 24167 Valve Guide
22 24172 Knob
23 24507 O-Ring (2)
24 24232 Reservoir
25 24237 Reservoir Cap
26 21847 Hydraulic Hose, 3 ft.
27 24207 Pin
28 24122 Pump Body
29 24217 Elbow, 45 Deg.,
3
/8″ NPTF
30 24247 Valve Body
31 24252 Ball Guide
32 24257 Spring
33 24262 Jam Nut
34 24267 Adjusting Plug
35 24197 Intake Tube w/Filter
36 24107 Hose Half Coupler
Following items not shown:
26032* Decal, Trade Name
26067 Repair Kit (includes * items)
5
4
31
2
3
1
34
36
30
33
26
17
32
20
NOTE: Order parts by Catalog Number only.
DO NOT order by Reference Number.
28
27
29
12
13
14
15
16
18
17
19
20
21
22
11
10
23
24
23
25
35
8
9
7
1
High Pressure
Relief (See
Service Notes)
6
17
RESERVOIR CAPACITY
Proper Oil Fill: 18.6 Cu. In. = 10.5 Ozs.
Fill to between lines inside reservoir.
Items marked with an asterisk (*) are included in the Repair Kit.
†See Service Notes.
NOTE: All components are METRIC dimensions.
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