Installation - Walvoil DPC130X Service Manual

Service Manual
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When you receive these Walvoil products, please check:
• if there are signs of damage of the packaging;
• that the dimensions of the product seat are compatible with those of the product itself;
• that the assembly seat is compatible with the part dimensions and that it has been prepared for the valve set-up (connection
hoses ready etc.);
Before starting the assembling, be sure that the mounting zone is not a potential explosive atmosphere (even with a very low
probability).
• remove the plastic plugs that protect the ports and be careful not to introduce any dirt or foreign matter inside the control valve
as this could damage it;
• mount the control valve safely over a flat surface (recommended 3 fixing point); at the same time do not use a hammer for
positioning by hitting; any assembly distortion can cause spool sticking and poor control;
• clean hoses before using them;
• prevent the presence of dust or foreign matters in port inlets;
• double check that hoses are correctly connected according to the prescription and indication of the hydraulic schema, especially:
- (in case of electrohydraulic control) be sure that drain line is directly connected to tank (avoid any back pressure)
- (in case of variable displacement system) be sure that LS signal line is correctly connected to the pump regulator
• tighten the port connectors safely with the recommended fastening torques (Nm) as shown in the following table;
• install the valve in a protected environment, avoiding direct exposure to weathering, water, salt or any other corrosion substan-
ces, powder or other potential explosive substances or gases.
THREAD TYPE
BSP
With O-Ring seal
With copper washer
With steel and rubber
washer
UN-UNF
With O-Ring seal
(*) V2 port is M14x1.5 threading: tightenìng torque value is the same of G1/4 thread
NOTE – These torque are recommended. Assembly tightening torque depends on many factors, including lubrication, coating
and surface finish.
D1WWTD02E
T
P
LS
FITTING TIGHTENING TORQUE - Nm /
A and B
P inlet port
workports
G 3/4 G 1/2
/ 66.4 / 36.9
90 50
/ 66.4 / 44.3
90 60
/ 51.6 / 44.3
70 60
1 1/16-12 7/8-14
(SAE 12) (SAE 10)
/ 70 / 36.9
95 50
L
B
A
V1
V2
lbft
LS signal port
T outlet port
V pilot ports*
G 3/4 G 1/4
/ 66.4 / 18.4
90 25
/ 66.4 / 22.1
90 30
/ 51.6 / 11.8
70 16
1 1/16-12 9/16-18
(SAE 12) (SAE 6)
/ 70 / 22.1
95 30
DPC130X

Installation

Hydraulic
L drain port
control ports
G 1/4 G 1/4
/ 18.4 / 18.4
25 25
/ 22.1 / 22.1
30 30
/ 11.8 / 11.8
16 16
9/16-18 9/16-18
(SAE 6) (SAE 6)
/ 22.1 / 22.1
30 30
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