RITE-HITE RHA-4000 User manual

Language: English
NOTICE TO USER . . . . . . . . . . . . . . . . . . .2
SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . .4
OPERATION . . . . . . . . . . . . . . . . . . . . . . . .8
MAINTENANCE . . . . . . . . . . . . . . . . . . . .10
TROUBLESHOOTING . . . . . . . . . . . . . . .13
ELECTRICAL WIRING . . . . . . . . . . . . . .15
ELECTRICAL . . . . . . . . . . . . . . . . . . . . . .16
PARTS. . . . . . . . . . . . . . . . . . . . . . . . . . . .22
WARRANTY . . . . . . . . . . . . . . . . . . . . . . .32
RHA-4000
Dock Leveler
Owner's Manual
Model: RHA-4000
Publication: AMEN00045 2020-02-04

NOTICE TO USER
Thank you for purchasing a Rite‑Hite product.
The English version of this manual shall prevail over any
error in, or conicting interpretation of, any translations.
Rite‑Hite reserves the right to substitute and/or modify
parts and drawings (electrical and architectural) from
those contained in this manual. Separate prints may be
included with the unit.
A Planned Maintenance Program (P.M.P.), customized to
your specic operation is available and recommended.
For a P.M.P., contact your local Rite‑Hite representative
or Rite‑Hite technical support at (U.S.) 888‑456‑3625,
(S.A.) [phone].
The Rite‑Hite®products in this manual are covered by one or more
of the following U.S. patents: 6065172, 6070283, 6085375, 6092970,
6106212, 6116839, 6190109, 6311352, 6322310, 6360394, 6368043,
6488464, 6524053, 6726432, 6773221, 6832403, 7032267, 7062814,
7213285, 7216391, 7363670, 7380305, 7503089, 7533431, 7546655,
7584517, 7681271, 7823239, 7841823, 7877831, 7914042, 8006811,
8065770, 8141189, 8191194, 8286757, 8287223, 8303235, 8307956,
8443474, 8464384, 8464846, 8465245, 8497761, 8499897, 8544130,
8547234, 8590087, 8590673, 8616826, 8657551, 8662535, 8678736,
8690087, 8905198, 9010501, 9096170, 9096397, 9126775, 9139384,
9145273, 9150367, 9174811, 9227799, 9230419 979003, 9481531,
9542824, 9564056, 9564072, 9586771, 9607496, 9633537, 9672713,
9694996, 9738467, 9771225, 9776511, 9777529, D775537, D778184
and may be covered by additional pending U.S. and foreign patent
applications.
Rite‑Hite®, ThinMan™, Safe‑T‑Lip®, Hydrachek®, Wheel‑Lok™,
Dok‑Lok®, Dual‑Dok®, Safe‑T‑Strut™, Dok‑Commander®, Jumbo™,
Hydra‑Rite™, Safe‑T‑Gate®, Rite‑Vu™ Hazard Recognition and
Communication System, and Smooth Transition Dok System™,
are trademarks of Rite‑Hite®.
Manufactured by Rite‑Hite Products Corporation.
RHA-4000 Dock Leveler Owner's Manual Rite-Hite®
2Publication: AMEN00045 2020-02-04

NOTICE TO USER
Owner Responsibility
1. The owner should recognize the inherent danger of
the interface between dock and transport vehicle. The
owner should, therefore, train and instruct operators
in the safe use of dock equipment in accordance with
the following information. The manufacturer shall
publish, provide to the initial purchaser, and make the
following information readily available to owners:
• Installation instructions
• Recommended initial and periodic inspections
procedures
• Maintenance procedures
• Operating instructions
• Descriptions or specications for replaceable or
repairable parts
• Tables identifying the grade (slope) for all variations
of length or conguration of the dock equipment, and
• Information identifying the maximum uncontrolled
drop encountered upon sudden removal of support
while within the working range of the equipment.
It shall be the responsibility of the owner to verify that
the material listed in this section has been received
and that it is made available for the instruction
and training of personnel entrusted with the use or
maintenance of the dock equipment.
2. When a transport vehicle is parked at a loading
dock, it is important that the vehicle is relatively
perpendicular to the dock face and in close contact
with at least one of the dock bumpers.
3. Nameplates, cautions, instructions, and posted
warnings shall not be obscured from the view of
operating or maintenance personnel for whom such
warnings are intended.
4. Manufacturer’s recommended periodic maintenance
and inspection procedures in effect at date of
shipment shall be followed, and written records of the
performance of these procedures should be kept.
5. As with any piece of machinery, dock equipment
requires routine maintenance, lubrication, and
adjustments. Your local Rite‑Hite representative offers
owners the option of a Planned Maintenance Program
(P.M.P.). As part of this service, your local Rite‑Hite
representative will do all routine maintenance,
lubrication, and adjustments.
6. Dock equipment that is structurally damaged shall be
removed from service, inspected by a manufacturer’s
authorized representative, and repaired as needed
before being placed back in service.
7. The manufacturer shall make available replacement
nameplates, caution/instruction labels, and operating/
maintenance manuals upon request of the owner.
The owner shall see that all nameplates, caution/
instruction markings or labels are in place and legible,
and that the appropriate operating/maintenance
manuals are provided to users.
8. Modifications or alterations of dock equipment shall
be made only with written permission of the original
manufacturer. These changes shall also satisfy all
safety recommendations of the original equipment
manufacturer for the particular application of the dock
equipment.
9. In order to be entitled to the benefits of the standard
product warranty, the dock equipment must have
been properly installed, maintained and operated
within its rated capacities and/or specific design
parameters, and not otherwise abused.
10. It is recommended that trailers equipped with air
ride suspensions should remove the air from the
suspension to minimize trailer bed drop, prior to
loading or unloading.
11. It is recommended that if trailers are equipped with
movable tandems axles, the tandems are moved to
rear of the trailer prior to loading or unloading.
12. When industrial trucks are driven on and off transport
vehicles during the loading and unloading operation,
the brakes on the transport vehicle shall be applied
and wheel chocks or a positive restraining device
shall be engaged.
13. It is recommended that an adequate stabilizing device
or devices be employed at the front of the trailer in all
cases where a trailer is being loaded or unloaded with
the trailer resting on its support legs (landing gear)
rather than a tractor fifth wheel or a converter dolly.
14. In selecting dock equipment, it is important to consider
not only present requirements but also future plans or
adverse environments.
190401
Rite‑Hite®Owner's Manual RHA‑4000 Dock Leveler
Publication: AMEN00045 2020-02-04 3

SAFETY
Safety Identifications
DANGER
Indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING
Indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION
Indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.
NOTICE
Indicates a situation which can cause damage to the
equipment, personal property and/or the environment,
or cause the equipment to operate improperly.
NOTE:A note is used to inform you of important
installation, operation, or maintenance information.
Lockout Procedure
Barricade work area and post safety warnings.
Power supply and control must:
• Be disconnected or locked in OFF position
using a lockout device approved by local
codes.
• Have signage that;
−Clearly states repairs are being made.
− Identies person responsible for lockout condition.
NOTE:Only this person should be able to remove
warnings and lockout device.
−Withstands environmental conditions (weather,
wet, and damp, etc.) and remains readable.
190820
RHA-4000 Dock Leveler Owner's Manual Rite-Hite®
4Publication: AMEN00045 2020-02-04

SAFETY
General
DANGER
When working with electrical or electronic
controls, make sure that the power source
has been locked out and tagged according to
approved local electrical codes.
Post safety warnings and barricade work area, at
dock level and at ground level, to prevent
unauthorized use of the dock position.
NEVER be under the dock leveler platform or lip
without:
• Installing the Safe-T-StrutTM or other supporting
device.
• If lip needs to be extended, follow procedures
shown under Safety Devices on the following
page.
• Turning OFF power to the control box.
• Locking out and tagging out the main power
source, as shown under Safety Warnings on
preceding page.
Rite‑Hite®Owner's Manual RHA‑4000 Dock Leveler
Publication: AMEN00045 2020-02-04 5

SAFETY
General Continued
NEVER be under the dock leveler platform or lip
without:
• Installing the Safe-T-StrutTM. See below right.
This can be done with the assistance of another
person by:
- Raise leveler until platform reaches its highest
position and lip extends. Continue to maintain
this position.
- Then have assistant insert the smaller end
of the Safe-T-StrutTM through the hole in the
middle of the leveler lip and place the strut’s
wider open end over the base located on the
leveler’s front frame. Align the holes on the
base and the Safe-T-StrutTM so that the leveler
may be secured with the retaining pin and
safety clip.
- Release the pushbutton on powered levelers
allowing the Safe-T-StrutTM to rest on the
underside of the lip.
• Lockout/Tagout power supply.
- Turn o󰀨 the power to the control box.
- Lockout/tagout the main power source, as
shown under Safety Warnings on the inside
front cover of this manual.
- Always barricade the leveler at dock level and
drive level to prevent any unauthorized use of
the leveler.
Remove the Maintenance Support.
• For Safe-T-StrutTM removal, have an assistant
raise the leveler to its highest position with
lip fully extended. Release the safety clip and
remove retaining pin. Lift strut o󰀨 base, and
remove from lip. Return the Safe-T-StrutTM to the
proper storage position.
• If you are unable to install the Maintenance
Support properly, contact your authorized
Rite-Hite Service Representative or Rite-Hite
Customer Service at 1-414-355-2600.
FIGURE 2 - INSTALL SAFE-T-STRUTTM
RHA-4000 Dock Leveler Owner's Manual Rite-Hite®
6Publication: AMEN00045 2020-02-04

SAFETY
General Continued
• Before starting installation or maintenance,
check and follow the safety procedures of the
facility where the dock leveler is being installed.
• NEVER enter a truck/trailer until its brakes are set,
air has been dumped from air ride suspension
(if applicable), and you have visually inspected
to be sure truck/trailer is securely held in place
by a vehicle restraint or wheel chock per OSHA
regulations.
• NEVER operate the leveler with you, anyone, or
anything on, or in front of the leveler, or without
a truck/trailer parked in position, or from on the
truck/trailer bed.
• DO NOT operate with anyone under platform or
in front of the lip.
• When leveler is not in use, ALWAYS store it so
that it is supported by the lip supports and that
it is level with the surrounding dock oor.
• If a malfunction does occur, always call your
authorized Rite-Hite service representative
immediately.
WARNING
Cancer and Reproductive Harm
www.P65Warnings.ca.gov
Rite‑Hite®Owner's Manual RHA‑4000 Dock Leveler
Publication: AMEN00045 2020-02-04 7

NORMAL OPERATION
1. Activate the leveler by pushing and holding the
RAISE button until leveler is fully raised and lip is
fully extended. See gure 3.
FIGURE 3 - POWERED DOCK LEVELER
2. When lip is fully extended, release RAISE button. The
leveler will automatically lower onto the truck/trailer bed.
See gure 4.
FIGURE 4 - NORMAL OPERATION
3. See Storing Leveler.
NOTES:
a. Levelers without Automatic Return to
Dock (ARTD) If the truck/trailer departs, the
leveler will move to its lowest position and
the lip will fall to the pendant position inside
the dock bumpers. See Storing Leveler.
b. Levelers with Automatic Return to Dock
(ARTD) If the lip is on the truck/trailer and
the truck departs, the leveler will move to
its lowest position and the lip will begin to
lower. As the lip drops toward the pendant
position, the ARTD system automatically
returns the leveler to the stored position
without operator assistance.
BELOW DOCK LOADING OPERATION
1. Activate the leveler by pushing and holding the
RAISE button until leveler is fully raised and lip is
fully extended. See gure 3.
2. When lip is fully extended, release RAISE button. If
equipped with safety legs, pull and hold the Safety
Leg Chain as the leveler lowers automatically onto
the truck/trailer bed. See gure 5.
FIGURE 5 - BELOW DOCK OPERATION
(SAFETY LEG EQUIPPED SHOWN)
3. When loading/unloading is complete, continue with
normal operation or return the leveler to stored
position. See Storing Leveler.
OPERATION
Safety Leg
Chain
RHA-4000 Dock Leveler Owner's Manual Rite-Hite®
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DOCK LEVEL (OR LOWER) END LOADING
OPERATION
1. Activate the leveler by pushing and holding
the RAISE button until leveler lip clears the lip
supports. See gure 6.
FIGURE 6 - END LOAD OPERATION - LIP POSITION
FIGURE 7 - END LOAD OPERATION
2. Release RAISE button and as platform is lowering
pull and hold the Safety Leg Chain, if equipped.
The leveler will lower to the below dock position
with the lip positioned between the face of the
loading dock and the truck/trailer bed. See gure 7
& 8.
NOTE: End loads at dock level and above can be handled
with the leveler in its stored position on units
without a Safe‑T‑Lip®.
FIGURE 8 - END LOAD OPERATION
(EQUIPPED WITH SAFETY LEGS)
3. When loading/unloading is complete, continue with
normal operation or return the leveler to stored
position. See Storing Leveler.
STORING LEVELER
1. To store the leveler, push and hold the RAISE
button until leveler is about 6 inches above dock
level and lip is fully pendant.
2. Release RAISE button. Leveler will lower to dock
level with lip resting in the lip supports.
See gure 9.
NOTE: On Powered levelers with Automatic Return to
Dock (ARTD). If the lip is on the truck/trailer and
the truck departs, the leveler will move to its lowest
position and the lip will begin to lower. As the lip
drops toward the pendant position, the ARTD
system automatically returns the leveler to the
stored position without operator assistance.
FIGURE 9 - LEVELER STORED
OPERATION
Safety Leg
Chain
Rite‑Hite®Owner's Manual RHA‑4000 Dock Leveler
Publication: AMEN00045 2020-02-04 9

MAINTENANCE
ALWAYS read and obey these instructions to prevent
personal injury.
• Post safety warnings and barricade work area,
at dock level and at ground level, to prevent
unauthorized use of the dock position before
maintenance has been completed.
• Make sure to install the maintenance support
strut before proceeding with any repair work.
Planned Maintenance
NOTE: Follow maintenance procedures below as outlined.
Include the specic steps for your leveler model.
NOTE: Your local Rite‑Hite representative provides a
Planned Maintenance Program (P.M.P.) which can
be tted to your specic operation. Call your local
representative.
Daily
1. Remove debris on and around leveler. Be sure the
hinge section of the lip and the platform is clean.
2. Check unit for proper operation.
30 days
1. Perform all Daily Maintenance.
2. Inspect the dock leveler monthly to ensure that there
are no broken or worn parts which could cause injury to
personnel or damage to the equipment.
90 Days
1. Perform all Daily Maintenance.
2. Clean pit.
3. Inspect lip out mechanism (pins, lip crank, links, chains
and shackles). Replace if worn.
4. Lubricate the leveler with the proper lubricants. See
gure 11.
NOTE: Items that use Anti‑Seize lubricant only require
lubrication every 360 Days.
5. Inspect all weather seals (if installed) and replace if
worn or damaged.
6. Inspect dock bumpers. Four inches (4”) of bumper
protection is required. Worn, torn, loose or missing
bumpers must be replaced.
7. Check conditions of concrete, angles and welds.
Repair or replace if necessary.
8. Inspect structure, hinge pins, clevis pins and cotter
pins for abnormal wear.
9. Inspect all conduit boxes, control boxes and electrical
connections for damage. Repair or replace if worn or
damaged.
NOTE: If control box has evidence of condensation.
a. Inspect conduit. Conduit should be routed to enter
through the bottom or side of the enclosure. A drip
leg may be needed if the conduit is lling with water.
b. Inspect the seal on the cover of the enclosure. The
seal should be securely adhered to the cover with
no signs of peeling or bubbling. Repair or replace if
worn or damaged.
c. For nonmetallic enclosures, breather vent part
number 122130 may be installed. The vent is NEMA
4X and will not change the environmental rating of
the control box.
10. With the leveler supported by the maintenance strut,
inspect the air tower for damage. Replace if worn or
damaged.
11. Check Air Tower Tub placement in leveler frame is
correct. Pit oor must be clear of obstructions where
plastic tub is located. Make certain tub hold down
chain is snug – no slack. See gure 12.
360 Days
1. Perform Daily and 90‑Day Maintenance.
2. Check and tighten control box mounting hardware.
3. Re‑torque all shoulder bolts on units equipped with
Safe‑T‑Lip®. See Figure 10.
FIGURE 10 - SHOULDER BOLT TORQUE
Safe-T-Lip®Shoulder Bolt
Torque Specications
• Torque Range: 290 ‑ 310 Ft‑Lbs.
RHA-4000 Dock Leveler Owner's Manual Rite-Hite®
10 Publication: AMEN00045 2020-02-04

FIGURE 11 - AIR POWERED LEVELER LUBRICATION
OIL SAE 30 Weight
NOTE:
Inside and Under
Slots On Safe‑T‑Lip®
Grease ‑ Moly Based
Dry Spray Lubricant
Anti‑Seize
NOTE:
Only if grease zerks
are present.
FIGURE 12 - TUB PLACEMENT
Attach chain assembly to
d‑rings on Tub, both sides.
Stops for side
Tub opening on
Leveler Frame.
Stops for side
Tub opening on
Leveler Frame.
MAINTENANCE
Rite‑Hite®Owner's Manual RHA‑4000 Dock Leveler
Publication: AMEN00045 2020-02-04 11

LIP LATCH BOLT ADJUSTMENT
If the lip does NOT latch when the leveler is fully raised
and remain latched as the platform lowers, the lip latch bolt
may need to be readjusted. Use the following procedure to
readjust the lip latch bolt:
1. Loosen the jam nuts on the lip latch bolt. See gure 13.
2. Turn the bolt clockwise one full turn at a time. See
gure 13.
3. Tighten the jam nuts on the lip latch bolt.
4. Follow normal operating procedures to verify that the
lip latch has been adjusted correctly and holds the
lip out as the platform lowers. Test unit three times to
make sure it latches all three times, if not readjust.
NOTE: DO NOT over adjust the lip latch bolt. When
properly adjusted the lip should just latch in. If you
have over adjusted the lip may not release, or it
will bend the delatch rod over time. Re‑adjust bolt
until lip no longer latches and then make one full
turn of the bolt until lip just latches.
LIP LATCH BOLT ADJUSTMENT
The lip stop bolt adjusts the position of the lip when the
leveler is stored to allow the lip to be centered on lip
supports when stored.
1 1/8” Preset
Flat On Bolt Head To Be Parallel To
Bottom Of Lip Crank Mount.
FIGURE 13 - LIP LATCH BOLT ADJUSTMENT
FIGURE 14 - LIP STOP BOLT
Lip
Centered In
Keepers
Lip
Stop Bolt
Standard Lip Safe‑T‑Lip®
MAINTENANCE
Leveler Adjustments
RHA-4000 Dock Leveler Owner's Manual Rite-Hite®
12 Publication: AMEN00045 2020-02-04

Problem Probable Cause Solution
1. Platform does not raise. a. No power.
b. The blower motor and/or control box
has been mis‑wired.
c. The pushbutton and/or contact block
does not function properly.
d. Overload tripped.
e. The blower motor has failed.
f. Check air tower assembly for damage.
a. Check the main power supply. Check
fuses in the control box and disconnect.
b. Check wiring.
c. Replace pushbutton operator and/or
contact block.
d. Push RESET on overload relay, if
applicable.
e. Replace air tower assembly.
f. Repair or replace as necessary.
2. Lip will not extend. a. Debris in lip hinge or lubrication
needed.
a. Remove dirt, debris and corrosion from
lip hinge and/or lubricate.
3. Lip remains fully or partially
extended.
a. Debris in lip hinge.
b. Lip out mechanism or below dock
actuator is damaged.
c. Lip impacted or bent.
a. Remove debris from lip hinge.
b. Repair or replace damaged
components.
c. Lubricate per maintenance procedures
or replace lip.
4. Platform does not lower. a. Debris under platform. a. Remove debris.
5. Platform raises slowly. a. Air tower system damaged.
b. Weight on platform.
a. Repair or replace damaged
components.
b. Remove weight on platform.
6. Lip does not latch. a. Lip latch adjustment out of adjustment. a. Readjust lip latch bolt. See gure 12.
TROUBLESHOOTING
Rite‑Hite®Owner's Manual RHA‑4000 Dock Leveler
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TROUBLESHOOTING
LED Status Chart – Standalone Controls
? = Varies (depending on operation)
F = O󰀨
ITL = Interlock input on
M = Lights when button pressed
P = Pulsing / Flashing
(set to steady using DIP switches)
T = Steady On
LEVELER CONTROL BOARD
INPUTS OUTPUTS
FIELD PUSH
BUTTONS 12VDC
ARTD INPUT COMBINED POWER UNIT INPUT [CMBD PU] GREEN LIGHT TO OPERATE LEVELER INPUT [GLT ITL] [SEE DIP SWITCH #2] OVERHEAD DOOR OPEN INTERLOCK INPUT [OHD ITL] [SEE DIP SWITCH #3] RAISE PUSH BUTTON MOTOR CONTACTOR OUTPUT [LVLR CONTR] 12VDC POWER SUPPLY OK
TERMINAL BLOCK NO. J9.2 J11.2 J11.1 J9.1 J16.4 J10.3 J10.1–2
LEVELER CONTROL BOARD LEDS LD5 LD3 LD2 LD4 LD14 LD6 LD1
LEVELER AUX BOARD LEDS –––– – ––
NO.
02.01.00
State/Sequence
No.
Rest State F F ? ? – F T
02.01.01 Raise Sequence F F ITL ITL M T T
02.01.02 Automatic Return to Dock T F ITL ITL – T T
02.01.03 Combined Power Unit Seq F T ? ? – T T
02.05.00 Run Fault State ? ? ? ? ? F T
RUN FAULT STATE
If Leveler Motor is operated continuously for 60 seconds, system will enter RUN FAULT STATE.
After a 60 second rest period, system will automatically enter the REST STATE and resume normal operation.
LED Status Chart – Dok-Commander Controls
? = Varies (depending on operation)
F = O󰀨
ITL = Interlock input on
M = Lights when button pressed
P = Pulsing / Flashing
(set to steady using DIP switches)
T = Steady On
MICRO CONTROL BOARD POWER
BOARD
INPUTS OUTPUTS
FIELD PUSH
BUTTONS 12VDC 12VDC
ARTD INPUT OVERHEAD DOOR OPEN INTERLOCK INPUT [OHD ITL] LEVELER STORED INTERLOCK TO UNLOCK [UNLK ITL] RAISE PUSH BUTTON MOTOR CONTACTOR OUTPUT [LVLR CONTR] 12VDC POWER SUPPLY OK
TERMINAL BLOCK NO. J14.4 J14.2 J14.3 Membrane J15.1 J2.1‑6
MICRO CONTROL BOARD LEDS LD32 LD29 LD30 LD52 LD42 LD7
LEVELER AUX BOARD LEDS ––– – – –
NO.
02.01.00
State/Sequence
No.
Rest State F ? ? – F T
02.01.01 Raise Sequence F ITL ? M T T
02.01.02 Automatic Return to Dock T ITL ? – T T
02.01.03 Combined Power Unit Seq F ? ? – T T
02.05.00 Run Fault State ? ? ? ? F T
RUN FAULT STATE
If Leveler Motor is operated continuously for 60 seconds, system will enter RUN FAULT STATE.
After a 60 second rest period, system will automatically enter the REST STATE and resume normal operation.
RHA-4000 Dock Leveler Owner's Manual Rite-Hite®
14 Publication: AMEN00045 2020-02-04

ELECTRICAL WIRING
MotorFLA
Ratings&
Connection
Detail
0‐50 51‐100 101‐150 151‐200
110‐120/1/60/1300W 13.3
12866
208‐240/1/60/1533W 6.7 14 14 12 10
MinimumWireSize(AWG)Chart
forVariousLineLengthsandLine
Loads
LineLength(ft)
FLA
RHA40
MOTORSIZE 1533W
110‐120/1/60 13.3
208‐240/1/50/60 6.7
HALDEX BUCHER
FLA FLA
110‐120/1/60 .75HP/10 1HP/11.2
208‐240/1/50 .75HP/5.0 1HP/6.7
208‐240/1/60 .75HP/5.0 1HP/7.0
208‐240/3/60/1.0HP 3.8 3.6
380‐415/3/50/1.0HP 2.5 2.0
440‐480/3/60/1.0HP 1.9 1.8
575/3/60/1.0HP 1.5 1.5
110‐120/1/60/1.0HP 21.2 19.0
208‐240/1/50/1.0HP 17.6 16.0
208‐240/1/60/1.0HP 10.6 9.5
208‐240/3/60/1.0HP 5.4 3.6
380‐415/3/50/1.0HP 2.3 2.0
440‐480/3/60/1.0HP 2.5 1.8
575/3/60/1.0HP 2.4 1.5
DOCKLEVELERMOTORFLARATINGS
BASE CONN
DETAIL
CONN
DETAIL
AC
BD
BD
G
HH
HH
GG
HH
II
HH
AL‐800/900
A
E
BE
II
F
B
DOCKLEVELERMOTORFLARATINGS
HYDRA‐RITE HALDEX CONN
DETAIL BUCHER CONN DETAIL
G
Rite‑Hite®Owner's Manual RHA‑4000 Dock Leveler
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ELECTRICAL
DENOTES MALE/FEMALE PLUG CONNECTION
DENOTES WIRE CONNECTIONS THRU TERMINAL BLOCK.
DENOTES WIRE NUT CONNECTION
DENOTES FIELD WIRES.
PB1 FOR VEHICLE RESTRAINT ITC.
TO DOK-LOK CONTROL BOX
"RAISE"
208-240v. 1PH. 60HZ. USE 10.0A DUAL ELEMENT TIME DELAY
208-240v. 1PH. 50HZ. USE 10.0A DUAL ELEMENT TIME DELAY
FROM CUSTOMER MAIN POWER & SAFETY PROTECTION
110-120v. 1PH. 60HZ. USE 15.0A DUAL ELEMENT TIME DELAY
MOT
T1
SEE NOTE 1
N
IF FUSED DISCONNECT IS
NOT PROVIDED BY RITE-HITE
PRODUCTS CORPORATION,
FUSED DISCONNECT MUST
BE PROVIDED BY OTHERS
AND INSTALLED PER LATEST
EDITION OF UL508A AND NEC
REQUIREMENTS.
SEE NOTE 1
FUSED DISCONNECT
SEE NOTE 4
(BY OTHERS) A BRANCH CIRCUIT DISCONNECT SHALL
BE LOCATED WITHIN A 50 FT. RADIUS
AND BE VISIBLE FROM THE CONTROL
BOX LOCATION. [REFERENCE LATEST
EDITION OF NEC, SECTION 430]
G
G
G
BLOWER MOTOR
1300 WATTS MAXIMUM
(SEE MOTOR FLA CHART)
115/1
50/60 Hz
INTERMITTENT DUTY
1L2
MOT
BLOWER MOTOR
1533 WATTS MAXIMUM
(SEE MOTOR FLA CHART)
208-240/1
50/60 Hz
INTERMITTENT DUTY
J-BOX J-BOX
MOTOR
PIT
J-BOX
MOTOR
LEGEND:
NOTE:
1. All Incoming Power (From Disconnect to Control Box) and Leveler Motor
Field Wiring To Be Minimum #12GA./Maximum #10GA. 60/75 Deg. C
Copper Wire, Insulated Sufficiently For Incoming Voltage.
2. All Control Field Wiring To Be Minimum #14GA. 60/75 Deg. C Copper Wire
Only, Insulated Sufficiently For Incoming Power.
3. All Internal Control Box Wiring To Be Minimum #16GA. 90 Deg. C, Red Copper
Wire Unless Otherwise Noted, Insulated Sufficiently For Incoming Power.
4. Incoming Power Field Wiring: See Minimum Wire Size Chart.
L1N
N
1L1
T1
N
G
T1
G
FIGURE 15 - RHA TYPE 1 CONTROL BOX - 120V./208-240V. 50/60HZ. SINGLE PHASE SCHEMATIC
RHA-4000 Dock Leveler Owner's Manual Rite-Hite®
16 Publication: AMEN00045 2020-02-04

ELECTRICAL
FIGURE 16A - RHA 115V. 60 HZ. SINGLE PHASE SCHEMATIC - PAGE 1
<RHA40 115V Schematic 2020‑01‑23.pdf>
Rite‑Hite®Owner's Manual RHA‑4000 Dock Leveler
Publication: AMEN00045 2020-02-04 17

FIGURE 16B - RHA 115V. 60 HZ. SINGLE PHASE SCHEMATIC - PAGE 2
ELECTRICAL
<RHA40 115V Schematic 2020‑01‑23.pdf>
RHA-4000 Dock Leveler Owner's Manual Rite-Hite®
18 Publication: AMEN00045 2020-02-04

FIGURE 17A - RHA 230V. 60HZ. SINGLE PHASE SCHEMATIC - PAGE 1
ELECTRICAL
<RHA40230V1PHSchematic2020‑01‑23.pdf>
Rite‑Hite®Owner's Manual RHA‑4000 Dock Leveler
Publication: AMEN00045 2020-02-04 19

FIGURE 17B - RHA 230V. 60HZ. SINGLE PHASE SCHEMATIC - PAGE 2
ELECTRICAL
<RHA40 230V 1PH Schematic 2020‑01‑23.pdf>
RHA-4000 Dock Leveler Owner's Manual Rite-Hite®
20 Publication: AMEN00045 2020-02-04