Moog D661 Serie Manuel De L'utilisateur page 3

2 Hydraulic Fluid
Mineral oil based hydraulic fluid according to DIN 51524,
parts 1 to 3, (ISO 11158).
Other hydraulic fluids on request.
Viscosity: 5...400 mm²/s, recommended 15...45 mm²/s.
Temperature range:
T –20...80 °C.
F
Class of cleanliness: According to ISO 4406:1999 at least
class 19/16/13; for longer life, class 17/14/11 recommended.
The cleanliness of the hydraulic fluid greatly influences the
functional safety and the wear and tear. In order to avoid mal-
functions and increased wear and tear, we recommend filtrat-
ing the hydraulic fluid accordingly.
Flushing instruction: Use of flushing plates or flushing valves
according to the machine manufacturer's instructions.
3 Installation
Compare model number and type with that specified on hy-
draulic schematic. The valve can be mounted in any position,
fixed or movable.
Mounting surface: Check for flatness (< 0.01 mm over
100 mm) and finish (R < 0.8 µm). Care must be taken to en-
a
sure that contamination does not enter the hydraulic system,
all work areas must be clean of surface or air-borne contami-
nation.
Mounting: Socket head screws (grade 10.9) according to
DIN EN ISO 4762, torque from inside to outside (not with
D661) diagonally alternating.
Pattern to
Series ISO 4401
D661 05-05-0-05
D662 07-07-0-05
D663/4 08-08-0-05
D665 10-09-0-05
4 Pilot Mode and Maximum Pressures
Pilot mode: Pay attention to the hydraulic connection scheme
and to the mounting pattern of the hydraulic manifold. Pay at-
tention to the hydraulic schematic on the valve nameplate and
to the type designation defining the pilot mode.
Maximum pilot and operating pressure (p
plate.
5 Electrical Connection
Electrical safety: The protective conductor connection is con-
nected to the electronics housing or valve body. The insulation
materials employed are designed for use in the safety extra-
low voltage range.
To comply with safety regulations requires isolation from the
mains according to EN 61558-1 and EN 61558-2-6 and limiting
all voltages according to EN 60204-1. We recommend using
SELV/PELV power supplies.
Rated signal: See nameplate.
External fuse per valve: 0.5 A medium time lag
Valve phasing: A positive signal (D–E) for 6+PE connector or
(4–5) for 11+PE connector causes valve opening P A.
Connector wiring: See wiring schematic tag attached to elec-
tronics housing, or refer to the catalog or the installation draw-
ing.
Connection: Signal lines shielded, shielding connected at
both ends and additionally connected to reference potential
(0 V) at the control side (to improve EMC). Connect the protec-
tive conductor.
Observe technical note TN 353.
Before applying electric signals the pilot stage has to be pres-
surized.
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Ambient T –20...60 °C,
A
Socket Torque
head screw Pcs.
M6 x 60 4
M10 x 60 4
M6 x 55 2
M12 x 75 6
M20 x 90 8
, p ): See name-
X P
6 Hydraulic System Start Up
Pay attention to the pressure setting, the venting instructions,
the fail-safe functions and the alarm messages!
7 Null Adjustment
fluid
Unsafe state of the machine due to wrong posi-
tion of the valve's spool.
A wrong position of the valve's spool may result in
undefined sequences of motion.
Remove the locking screw with sealing ring from the cover of
the electronics housing to access the null adjustment potenti-
ometer. Turning the potentiometer shaft results in a spool posi-
tion change. Turning clockwise will increase valve opening
PíA. The output signal for actual spool position will also
change. After adjustment refit the sealing ring and the locking
screw.
8 Service
Replacing O rings: The mounting surface O rings may be re-
placed by the customer (on the pilot valves and the way valves
as well). The O rings of the pilot valve and way valve of the
D661 must not be replaced by the customer. Pay attention to
cleanliness of the valve and of the surroundings.
Transportation: Before transporting a valve the valve ports
[Nm]
have to be sealed with a clean shipping plate or adhesive tape.
11
Package the valve carefully to prevent damage during trans-
54
portation.
11
Repairs: Repairs may only be carried out by us or by our au-
94
thorized service centers.
460
9 Disposal
It is essential to comply with the relevant national waste dis-
posal regulations and environmental protection provisions
when disposing of valves, spare parts or accessories, packag-
ing that is no longer needed, hydraulic fluid or auxiliary materi-
als and substances used for cleaning!
Mounting and Installation Notes D661/2/3/4/5 (B97072-660-001; Version 4.0, 03/10)
WARNING
With valves with fail-safe function, the null position
must not be altered.