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1728 Orbit Way - Minden, Nevada 89423 P: 775-782-1700 F: 775-782-1701 [email protected] www.maxtonvalve.com
39
\\SERVER\CATALOG 2019\2019 Catalog Rev 2
THE INFORMATION PRESENTED HEREIN IS FOR USE BY SKILLED HYDRAULIC ELEVATOR PROFESSIONALS
SPECIAL CONSIDERATIONS:
Make all adjustments at minimum pressure (no load on elevator) except where noted. “IN” is ALWAYS (CW) clockwise. “OUT” is ALWAYS
(CCW) counterclockwise.
THE CONTROL PLATE ADJUSTERS HAVE SEAL NUTS, NOT LOCK NUTS.
Adjust nut only to set seal friction
(friction will maintain adjustment). When adjustment procedure calls for coils to be disconnected, disconnect them electrically. Do not remove
them physically. Make adjustments with a minimum oil temperature of 80˚ F, not to exceed 100˚ F maximum. Maxton recommends the use of
a 5 micron filtration system. With the presence of at least some adverse conditions in most installations, serious consideration should be given
to overhaul or replacement of a control valve on a five year cycle.
GAUGE PORTS:
Gauge ports - 1/8” NPT provided at points A, B and S.
A
Port: Pump pressure (RELIEF, WORKING PRESSURE).
B
Port: Jack pressure (STATIC, DOWN RUNNING).
S
Port: Low pressure switch port.
Note: The minimum operating pressure at port B should be at
least 50 psi (3.4 bar) as car is moving down full speed with no
load. See flow chart.
OPERATIONAL DATA:
Min. / Max. Pressure:
Max. Rated Flow:
Operating Temperature:
Optimal Temp. Range.
Oil Type:
50-800 psi (3.4-55 bar)
185 gpm (700 l / min.)
80˚-150˚ F (26˚- 65˚ C)
100˚-130˚ F (38˚- 54˚ C)
Hyd. ISO VG 32
150 SUS @ 100˚ F (38˚ C)
* SAFETACH2
performance meter validates valve adjustment by providing
direct speed and acceleration (g-force) readouts.
Questions:
Call Tech Support (775) 782-1700 (7am-4pm PST), use
ADJUSTMENT PROCEDURE UC4, UC4M
B44
1
BPS
Disconnect the
US
coil, turn
UA
IN (CW) register an up call and
turn
BPS
IN (CW) until the car just moves. Next, turn the
BPS
adjuster OUT (CCW) until it stops the movement of the car, then
OUT 1/ 2 turn more. Snug lock nut on
BPS
adjuster and stop
pump. NOTE: If car does not move with
BPS
fully IN (CW), the
valve may be oversized for the job (consult factory for proper valve
sizing). Reconnect the
US
coil.
2
UA
Register an up call (pump running,
U
&
US
coils energized, car should
not move), slowly turn
UA
OUT (CCW) to attain
full up speed within 24 to 36 inches.
*
(Accel 0.04g-0.09g).
3
UL
Disconnect the
U
coil. Turn
UL
adjuster IN (CW) to stop and
register an up call. Leveling speed should be 3 to 5 fpm. (If not,
readjust
LS*
). Turn
UL
adjuster OUT (CCW) to attain 9 to 12 fpm
leveling speed. Reconnect the
U
coil and lower the car to lowest
landing.
*(Read leveling speed)
.
4
UT
Register an up call and turn
UT
IN (CW) so that the car slows to
provide 4 to 6 inches of stabilized up leveling. Repeat steps 3 and
4 as necessary.
*(Decel 0.04g-0.09g)
.
5
US
With
US
adjuster fully OUT (CCW), car should stop 1/4" to 3/8"
below floor. After a normal up run, turn
US
IN (CW) as needed to
bring car to floor level. The pump must be timed to run ½ second
after the car has reached the floor.
6
With empty car at bottom floor, disconnect
U
&
US
coils and
register a call. The car must not move. If movement occurs, check
BPS
and
US
.
LS*
Dot on the
LS
adjuster should be referenced to the line between
F / S. When necessary, disconnect the
U
coil and
turn the
UL
adjuster
IN (CW) to stop. Unlock the LS adjuster by loosening the screw next
to the symbol 1 turn. Move the
LS
adjuster slightly toward S for
slower or F for faster leveling speeds. Set adjustment from 3 to 5 fpm
with the
LS
adjuster, tighten locking screw down, verify LS speed after
tightening screw, then repeat step 3.
* (Level Speed Test 3 to 5 fpm).
7
D
Register a down call to set proper down speed with down
speed adjuster
D
as required. Tighten the lock nut (snug)
& send car to upper landing.
*(Read high speed)
.
8
DA
Start by turning
DA
adjusters IN (CW) to stop.
Register a down call and, turn the
DA
adjuster slowly OUT
(CCW) until the car accelerates smoothly. Send car to
upper landing.
*(Accel. 0.04g-0.09g).
9
DT
Register a down call and turn
DT
IN (CW) so that the car
slows to provide 4 to 6 inches of stabilized down leveling.
*(Decel 0.04g-0.09g).
10
DL
Disconnect
D
coil. Register a down call and set down
leveling speed at 6 to 9 fpm with the
DL
adjuster. Tighten
the lock nut (snug). Reconnect
D
coil.
* (leveling speed 6 to 9 fpm)
.
11
DS
Turn
DS
IN (CW), when necessary, for a softer stop.
ML
MANUAL LOWERING: Turn
ML
screw OUT (CCW) to
lower car downward at leveling speed when necessary.
R
RELIEF:
A.
Land car in pit and install pressure gauge in
A
port.
B.
Register an up call with a fully loaded car, making
note of Maximum operating pressure.
C.
Turn
UA
and
RELIEF
adjuster OUT (CCW) to stop.
D.
Close the manual shut off valve to the jack.
E.
Register an up call, observe pressure gauge and turn
RELIEF
IN (CW) to increase pressure. Final setting
should be in accordance with local code requirement
not to exceed 150% of maximum operating pressure.
F.
Tighten the lock nut (snug).
G.
Restart to check the pressure relief setting. Seal as
required .
H.
Open the manual shut off valve to the jack.
I.
Readjust
UA
for proper Up Acceleration
.
*(Accel 0.04g-0.09g)
.
DEFAULT SETTINGS
If valve is received from Maxton, only minor adjustments may be required.
CONTROL PLATE
US
UP STOP
OUT
(CCW)
to stop
(faster rate)
UL
UP LEVEL
IN
(CW)
to stop
(slower rate)
UA
UP ACCELERATION
IN
(CW)
to stop
(slower rate)
UT
UP TRANSITION
OUT
(CCW)
to stop
(faster rate)
VALVE BODY
BPS
BY-PASS SIZING
OUT
(CCW)
to stop
(delays up start)
LS
LEVEL SPEED (factory set) DOT ON LINE
(set 3-5 fpm)
R
RELIEF APPROX 450 psi (CW increases pressure)
DEFAULT SETTINGS
If valve is received from Maxton, only minor adjustments may be required.
CONTROL PLATE
DT
DOWN TRANSITION
OUT
(CCW)
to stop
(faster rate)
DA
DOWN ACCELERATION
OUT
(CCW)
to stop
(faster rate)
DS
DOWN STOP
OUT
(CCW)
to stop
(faster rate)
ML
MANUAL LOWERING
IN
(CW)
to stop
VALVE BODY
D
DOWN SPEED Turn OUT (CCW) 5 threads above lock nut.
(faster speed)
DL
DOWN LEVEL Turn OUT (CCW) 2 threads above lock nut.
(faster speed)
Содержание EMV10
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