Crown Equipment Series WB - Manual (Page 4)

SF14107 Rev. 6/03
The Momentum symbols are a trademark of
Crown Equipment Corporation.
Series WB Technical Information
C
Crown Equipment Corporation
New Bremen, Ohio 45869 USA
Tel 419-629-2311
Fax 419-629-3796
crown.com
Because Crown is continually improving its products,
specifications are subject to change without notice.
Copyright 2002 Crown Equipment Corporation
Printed in U.S.A.
Capacities
Model 20WB: 2000 lb
at 24" load center.
Model 30WB: 3000 lb
at 24" load center.
Model 40WB: 4000 lb
at 24" load center.
Maximum Battery Size
31.75" wide x 13.12" long x
23.25" high.
Batteries
Up to 600 amp hour capacity
available. 24 volt electrical sys-
tem. The 20WB, 30WB, and
40WB must have a battery
weighing 975 lbs or more.
Travel Speeds
In third speed: Loaded, 2.5 mph;
Empty, 3.0 mph. These speeds
are average for all Walkie
Counterbalanced trucks. For
safety, third speed is automati-
cally shut off when forks reach
68" on WBTL models, or when
forks extend above free lift on
WBTF and WBTT models.
Lifting/Lowering Speeds (fpm)
Empty (E), Loaded (L)
Wheels and Tires
Polyurethane Drive Tire - 13" dia
x 4.5" wide x 8" dia hub.
Rubber Drive Tire - 13.5" dia x
5.5" wide x 8" dia hub.
Load Wheels - 10" dia x 4"
wide x 6.5" dia hub. 40WB load
wheels are 5" wide. Polyurethane
load wheels on 30WB and
40WB, rubber power saver
compound standard on
20WB models.
Forks
Fork carriage standard ITA
Class II hook type mounting.
Fork lengths - 30", 36", 42" and
48". Fork spread - adjustable
33" maximum, 8" minimum.
Drive Unit
Gear drive from motor to drive
wheel axle. The gear train is
mounted on ball and tapered
roller bearings, and operates in
an oil-filled, sealed housing.
Brake
Internal expanding mechanical
brake with 5" drum and bonded
brake linings. Brake is applied
when control handle is within 15°
of full vertical or full horizontal
position.
Power Unit Structure
Access panel permits easy
entry to all electric and hydraulic
components.
Lift Structure
Outer and inner masts con-
structed of hot rolled carbon steel
I-beam. Telescoping mast section
nests in main upright to provide
better visibility for operator.
Carriage Rollers
Alloy steel rollers contoured to fit
mast are equipped with sealed
ball bearings.
Control Handle
Control handle has dual twist-
grips which control three speeds
forward and reverse. Twist-grips
return to neutral when released.
The handle contains a large
safety button which reverses the
direction of the truck should the
button touch the operator. A
large horn button is standard
equipment, as is a third speed
cutoff switch.
Safety Switches
1. Third speed switch in control
handle may be used to shut
off high speed when operating
in congested areas.
2. Limit switch automatically
reduces maximum travel
speed immediately upon
extension of second and third
stages on WBTF and WBTT
models, and when forks
extend above 68" on WBTL
models.
3. Reversing button on control
handle reverses direction of
travel when actuated by the
operator.
Hydraulic System
Standard equipment includes:
1. Heavy duty motor and gear
pump assembled as an
integral unit.
2. Spool-type hydraulic control
valve with built-in check and
relief valve for efficient over-
load protection of lift and tilt
circuits.
3. Pressure compensating flow
control valve at base of lift
cylinder regulates maximum
lowering speed.
4. Lift cylinder diameters vary,
and are designed to maintain
optimum hydraulic pressure
depending on capacity of
truck. All WBTF and WBTT
models are equipped with a
three cylinder cluster to
provide full free lift.
5. A conveniently located
raise/lower lever is standard
equipment. This throttle per-
mits infinite control. Push but-
ton raise/lower controls can
be installed in control handle
as optional equipment.
6. Fixed flow control at side of tilt
cylinder regulates maximum tilt
speed.
7. Two double acting piston-type
tilt cylinders.
8. A conveniently located lever
for forward or backward tilt
activation is standard. This
throttle permits infinite control
of tilt functions.
Electrical System
Standard equipment includes:
1. 24 volt electrical system.
2. Series wound high torque
.85 hp drive motor.
3. Series wound high torque
5 hp lift motor.
4. Heavy duty pump contactor
with replaceable tips.
5. Four heavy duty travel speed
contactors. A solid-state time
relay provides controlled
acceleration between 2nd
and 3rd speed.
6. Fused control and power
circuits.
7. Color coded wiring for ease
of service.
8. Key switch.
9. Power disconnect lever.
Optional Equipment and
Modifications
1. Transistor speed control.
2. Raise and lower control on
retractable cord.
3. Hour meter.
4. Higher lifting heights.
5. Additional counterweight, when
smaller batteries are used.
6. One-or two spool auxiliary
valves for controlling various
hydraulic attachments.
7. Special attachment-sideshifter,
drum handling equipment,
paper roll clamp. For other
special attachments, consult
dealer.
8. Discharge indicator.
Other Options
1. Audible Travel Alarm.
2. Flashing Lights.
Safety considerations and dan-
gers associated with audible
travel alarms and flashing lights
include:
• Multiple alarms and/or lights
can cause confusion.
• Workers ignore the alarms
and/or lights after day-in and
day-out exposure.
• Operator may transfer the
responsibility for “looking out”
to the pedestrians.
• Annoys operators and
pedestrians.
Dimensions and performance
data given may vary due to
manufacturing tolerances.
Performance is based on an
average size vehicle and is affect-
ed by weight, condition of truck,
how it is equipped and the con-
ditions of the operating area.
Crown products and specifica-
tions are subject to change
without notice.
Lifting Speed Lowering Speed
Models E L E L
20WBTF 64 27 30 26
20WBTL 64 38 50 42
30WBTF 55 26 50 27
30WBTL 56 34 50 40
30WBTT 46 30 23 36
40WBTF 44 24 20 23
40WBTL 44 25 20 25
40WBTT 44 23 20 26