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1728 Orbit Way - Minden, Nevada 89423 P: 775-782-1700 F: 775-782-1701 [email protected] www.maxtonvalve.com
17
\\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 BLOCK 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:
50-600 psi (3.4-41.5 bar)
360 gpm (1363 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
Maxtonvalve.com or download Maxton Mobile Mechanic from your APP Store
ADJUSTMENT PROCEDURE UC1, UC1A, UC2, UC2A
B44
DEFAULT SETTINGS
If valve is received from Maxton, only minor adjustments may be required.
CONTROL BLOCK
US
UP STOP
OUT
(CCW)
to stop.
(faster rate).
UL
UP LEVEL
IN
(CW)
to stop.
(slower speed).
UA
UP ACCELERATION
IN
(CW)
to stop.
(slower rate).
UT
UP TRANSITION
OUT
(CCW)
to stop.
(faster rate).
R
RELIEF (factory set)
APPROX 450 psi (CW increases pressure)
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)
DEFAULT SETTINGS
If valve is received from Maxton, only minor adjustments may be required.
CONTROL BLOCK
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) 4 threads above lock nut.
(faster speed)
DL
DOWN LEVEL Turn OUT (CCW) 2 threads above lock nut.
(faster speed)
DOWN SECTION ADJUSTMENTS
(Start with car at upper landing)
7
D
Register a down call to set proper down speed with down speed
adjuster
D
as required. Send car to upper landing.
*(Read high speed).
8
DA
Start by turning
DA
adjuster 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. Send car to upper
landing.
* (Decel 0.04g-0.09g).
10
DL
Disconnect
D
coil. Register a down call, hold
D
adjuster in place
and set down level speed at 6 to 9 fpm with the
DL
adjuster.
Tighten both
D
&
DL
lock nuts (snug tight). 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
adjuster OUT (CCW) to stop. Turn RELIEF
adjuster OUT (CCW) two turns.
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 tight).
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).
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.
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 to verify that the LS adjustment is set to
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).
ADDITIONAL ADJUSTMENT INFORMATION FOR THE
UC2 / UC2A ON THE BACK SIDE
UP SECTION ADJUSTMENTS
(Start with car at lower landing)
Содержание EMV10
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