HWH 310 SERIES User manual

H
CORPORATION
H
W
R
FEATURING:
TOUCH PANEL CONTROL
HYDRAULIC LEVELING
HWH TOUCH PANEL-CONTROLLED
OPERATOR’S MANUAL
CAUTION!
ON
STORE
OFF
HWH HYDRAULIC LEVELING
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
STRAIGHT-ACTING FRONT JACKS
ML10045/MP05.3013/TH-FW
FRONT JACK EQUALIZATION
AP10045 - US
310 SERIES FIFTH WHEEL
LEVELING SYSTEM
AP10272 - Europe
18MAY01
(ON I-80, EXIT 267 SOUTH)
INTERNET: http: //www.hwhcorp.com
[phone] / [phone]
MOSCOW, IOWA 52760
2096 MOSCOW ROAD
HWH CORPORATION
AP21562 - French

CAUTION !
READ THE ENTIRE OPERATOR’S MANUAL BEFORE OPERATING.
MOVE FORWARD OR BACKWARD WITHOUT WARNING CAUSING INJURY OR DEATH.
KEEP ALL PEOPLE CLEAR OF VEHICLE WHILE LEVELING SYSTEM IS IN USE.
CAUSING INJURY OR DEATH.
CHIPS, OIL LEAKS, ETC. FOLLOW ALL OTHER APPLICABLE SHOP SAFETY PRACTICES.
OPERATOR’S MANUAL
BLOCK FRAME AND TIRES SECURELY BEFORE CRAWLING UNDER VEHICLE. DO NOT USE LEVELING JACKS OR AIR
SUSPENSION TO SUPPORT VEHICLE WHILE UNDER VEHICLE OR CHANGING TIRES. VEHICLE MAY DROP AND/OR
NEVER PLACE HANDS OR OTHER PARTS OF THE BODY NEAR HYDRAULIC LEAKS. OIL MAY PENETRATE SKIN
WEAR SAFETY GLASSES WHEN INSPECTING OR SERVICING THE SYSTEM TO PROTECT EYES FROM DIRT, METAL
SET FRONT JACK STOP RODS AFTER LEVELING OR PARKING THE TRAILER. WHILE SETTING STOP RODS, HITCHING
OR UNHITCHING, AVOID AREAS WHERE BODY MAY BE CRUSHED BY SUDDEN DROPPING OR SLIDING OF THE TRAILER.
DO NOT USE THE LEVELING JACKS IF STOP RODS, RETAINING PINS OR GUIDES BECOME DAMAGED, LOST OR IN
ANY WAY INOPERATIVE.
MP15.3
30MAY01
IMPORTANT: IF VEHICLE IS EQUIPPED WITH A ROOM EXTENSION, READ ROOM EXTENSION SECTION BEFORE
OPERATING LEVELING SYSTEM.
DO NOT LIFT TOW VEHICLE WITH LEVELING SYSTEM.
HOW TO OBTAIN WARRANTY SERVICE
THIS IS NOT TO BE INTERPRETED AS A STATEMENT OF WARRANTY
HWH CORPORATION strives to maintain the highest level of
customer satisfaction. Therefore, if you discover a defect or
problem, please do the following:
[phone] OR [phone]. Give your name and
coach was purchased, or the date of system installation,
Notify the dealership where you purchased the
vehicle or had the leveling system installed. Dealership
management people are in the best position to resolve
the problem quickly. If the dealer has difficulty solving
the problem, he should immediately contact the Customer
Service Department, at HWH CORPORATION.
If your dealer cannot or will not solve the problem,
notify the Customer Service Department:
HWH CORPORATION 2096 Moscow Rd. Moscow IA. 52760
address, coach manufacturer and model year, date the
SECOND:
FIRST:
authorization of an independent service facility, to be
defective part, either by appointment at the factory or by the
CORPORATION will authorize repair or replacement of the
determine whether or not your claim is valid. If it is, HWH
HWH CORPORATION personnel will contact you to
during business hours (8:00 a.m. till 5:00 p.m. c.s.t.).
description of the problem, and where you can be reached
determined by HWH CORPORATION. All warranty repairs
must be performed by an independent service facility
authorized by HWH CORPORATION, or at the
HWH CORPORATION factory, unless prior written approval
has been obtained from proper HWH CORPORATION
personnel.

CONTROL FUNCTIONS
This is the "ON" button for the leveling system.
It provides control power to operate the electrical relay on the
This light indicates the system is on.
indicates a side or end of the coach is low. Extend the appro-
priate jack pairs to put out the yellow light. One or two yellow
CONTROL IDENTIFICATION
CONTROL BUTTONS INDICATOR LIGHTS
Side arrows operate the rear jacks only.
MP25.3030
21FEB97
Fifth wheel trailers must have straight-
acting jacks on the front of the trailer. Either straight-acting or
kick-down style jacks may be used on the rear. The respective
red WARNING light will be on if a straight-acting jack is extended
2 inches or more, or if a kick-down style jack is in the vertical
position, provided the system is on.
"ON" BUTTON:
NOTE:
ON LIGHT:
LEVELING LIGHTS:
WARNING LIGHTS:
This button turns off control power to the
leveling system.
ON LIGHT WARNING LIGHTS
(4 - Red)
LEVELING LIGHTS
(4 - Yellow)
CAUTION!
ON
STORE
OFF
HWH HYDRAULIC LEVELING
UNDERSTAND OPERATOR’S MANUAL BEFORE USING. BLOCK FRAME AND TIRES
SECURELY BEFORE REMOVING TIRES OR CRAWLING UNDER VEHICLE.
"STORE" BUTTON
EXTEND FRONT BUTTON
RETRACT FRONT BUTTON
RETRACT RIGHT SIDE BUTTON
EXTEND RIGHT SIDE BUTTON
This button will retract all four jacks at the
same time. It is to be used only after the trailer has been hitched
to the tow vehicle.
tend their respective jacks and raise the trailer.
These buttons will
retract their respective jacks and lower the trailer.
"OFF" BUTTON:
"STORE" BUTTON:
EXTEND BUTTONS (UP ARROWS):
RETRACT BUTTONS (DOWN ARROWS):
STORE LIGHT
"ON" BUTTON
"OFF" BUTTON
EXTEND LEFT SIDE RETRACT LEFT SIDE
BUTTON
BUTTON
EXTEND REAR BUTTON
RETRACT REAR BUTTON
STORE LIGHT: This light indicates the leveling system is in
the STORE mode.
These buttons will ex-
pump, the LEVELING lights and the 4 red WARNING lights.
LEVELING lights can be on at the same time. The coach is
level when all yellow lights are out.
If a yellow LEVELING light is on, that

OPERATING PROCEDURES
SET UP PROCEDURE
1. Trailer must be unhitched from the tow vehicle before level-
ing. The HWH front jacks may be used to lift the trailer for
unhitching. If auxiliary jacks are used to unhitch the trailer,
they should be retracted before the leveling system is used
for leveling.
If parking on soft ground or asphalt paving, wood blocks or
unhitching.
pads should be placed under the jacks.
result if raise arrows are operated for an extended period of
time.
2. The touch panel must be on for the system to function.
3. Lower the front of the trailer until the front yellow level indi-
cator lights come on. This is done by pushing the front RETRACT
button. The red jacks down warning lights will light when the
4. A lit yellow LEVEL light indicates that the side, end or corner
of the trailer is low. Pushing the up arrow for corresponding yellow
level lights will extend that jack or jack pair to level the vehicle.
Extend jacks as needed to put out all the yellow lights. Always
give a side yellow level light priority when leveling the trailer.
If the ground is too uneven, the jacks may not have engough
stroke to level the trailer. The trailer may have to be moved.
5. After the trailer is level, the jacks not used for leveling may
be extended until they touch the ground. This provides addi-
6. Push the "OFF" button on the touch panel to turn the system
7. The jack stop rods should be adjusted immediately after
the leveling and stabilizing procedure is finished.
is supported by the front jacks.
CAUTION: WHILE SETTING STOP RODS AVOID
AREAS WHERE BODY MAY BE CRUSHED BY SUDDEN
DROPPING OR SLIDING OF TRAILER.
A. Remove retaining pin to allow stop rod to drop down to
the foot of the jack.
B. Lift stop rod as needed (up to 4") to align the hole in the
guide with the nearest available hole in the stop rod. Insert
the retaining pin through the holes in the guide and stop rod.
Latch the keeper wire for the retaining pin.
a month or whenever the trailer is used. To keep the system
in operating condition.
STOP ROD
RETAINING PIN
STOP ROD POSITION
GUIDE
MP35.3055
21JUL98
ROOM EXTENSION PROCEDURES
read this section carefully.
If the vehicle is equipped with kick-down jacks, the wheels MUST
be blocked securely. Do NOT operate any room extension
until the leveling and stabilizing procedure is complete. Do
If the vehicle is equipped with a room extension IMPORTANT:
NOT retract the leveling system until all room extensions are
retracted. NEVER operate the leveling system when any
Refer to the vehicle owner’s manual for proper operation of
room extensions are extended.
room extensions.
IMPORTANT: Do not use a room extension support when the
vehicle is supported by the leveling system.
jacks are extended 2 inches or more.
tional stability against wind and activity in the trailer.
off.
NOTE: Refer to the trailer manufacturer owner’s manual for
IMPORTANT: Overheating and excessive current drain will
NOTE: The jack stop rods should be set anytime the trailer
NOTE: The leveling system should be cycled at least once

OPERATING PROCEDURES
STOP ROD
RETAINING PIN
STOP ROD POSITION
1. Before retracting the jacks, the stop rods must be returned
to the travel position.
CAUTION: WHEN STORING THE JACK STOP RODS,
AVOID AREAS WHERE BODY MAY BE CRUSHED BY
SUDDEN DROPPING OR SLIDING OF TRAILER.
a. Remove the retaining pin. If the trailer weight is on the stop
rods, the front jacks may have to be extended slightly to free
the retaining pin.
b. Lift the stop rod to align the bottom hole in the stop rod
with the hole in the guide. Insert the retaining pin through
both holes and latch the retaining pin keeper wire.
3. Push and hold the rear RETRACT button until the rear
2. Push the "ON" button.
4. Hitch the trailer to the tow vehicle using the procedure sup-
plied by the trailer manufacturer.
5. When the vehicle is securely hitched to the tow vehicle,
push the "STORE" button. All four jacks will retract. After
all four jacks are fully retracted, release the "STORE" button.
7. Visually inspect all of the jacks to make sure they are fully
retracted before moving the trailer.
CAUTION: ONLY USE THE "STORE" BUTTON IF THE
TRAILER IS HITCHED TO A TOW VEHICLE.
PREPARATION FOR TRAVEL
6. Press the "OFF" button to turn the system off.
WARNING lights are out.
MP35.3060
25APR97

OPERATING PROCEDURES
MP35.8005
6SEP95
MANUAL JACK RETRACTION
ficult. The valves need only to be opened enough to retract
ternal spring is compressed, turning may become more dif-
clockwise. The handles may turn easily at first , but as an in-
3. Open the LOCK valve. Slowly turn the "T" handles counter
Use the valve release "T" handles for retracting only
if the "STORE" button on the control panel will not retract the
NOT CRAWL UNDER THE VEHICLE, KEEP A SAFE DISTANCE
IN FRONT AND REAR OF VEHICLE. THE VEHICLE MAY
DROP AND/OR MOVE FORWARD OR BACKWARD WITH-
OUT WARNING AS THE VALVE RELEASE IS OPERATED.
1. Locate the 4 valve release "T" handles on the solenoid valves.
The solenoid valves are located on the pump/valve assembly.
2. Allow clearance for vehicle to lower.
the jack.
CAUTION:
jacks for travel.
KEEP AWAY FROM THE WHEELS, DO
valve release "T" handles.
: Retract all room extensions before using the
IMPORTANT
9. The system should now be repaired before using again.
Once the internal spring tension has been released, the handles
8. Close the valves by turning the release handles clockwise.
7. Check that all four jacks are now retracted.
5. Return the stop rods before retracting the front jacks.
DO NOT tighten the handles past this point as internal damage
will turn free for several turns. Once the "T" handles are snug,
4. Retract the rear jacks.
may occur to the solenoid.
front jacks. Either valve will retract both front jacks.
6. Hitch the trailer to the tow vehicle while retracting the two
See ELECTRIAL CONNECTION DIAGRAM - HYDRAULIC MANIFOLD.
NOTE:

MAINTENANCE
All major components of the system can be replaced
with rebuilt units or can be sent to HWH CORPORATION to
be rebuilt, when the system is out of warranty.
MP45.8
31JAN01
NOTE:
OIL LEVEL
UNUSUAL CONDITIONS
STOP ROD POSITION
RETAINING PIN
STOP ROD
FLUID: HWH Specialty Hydraulic Oil is recommended. In an
brake fluid or hydraulic jack fluid. Use of these can damage
and can cause staining should a leak occur. DO NOT USE
Dexron automatic transmission fluid contains red dye
emergency Dexron automatic transmission fluid can be used.
seals.
NOTE:
It is important that the four leveling units are fully retracted
before checking the hydraulic oil level. To check the oil
supply, remove the breather plug from the top of the
hydraulic oil reservoir. The oil level should be approximately
one inch below the top of the reservoir when adequately
filled.
In general, to insure the smooth operation of the leveling
system, it is a good idea to occasionally check the individual
leveling units to prevent problems. This is especially true
under the unusual conditions stated in the following:
If driving conditions are unusually muddy, the units may
become caked or clogged with mud. This condition may
hamper the proper operation of the leveling system. This
problem may be prevented or remedied by cleaning off each
leveling unit if they become excessively muddy.
In wet or icy weather leveling units may become encrusted
with ice. This may cause the leveling system to function
improperly. To eliminate this problem, periodically check the
leveling units and break loose any ice which may be causing
improper operation.
The stop rods and retaining pins on the front jacks must be
kept in good operating condition. Clean and lubricate the
rod and retaining pin regularly.
Do not move the trailer while the leveling units are still in
contact with the ground. Visually check to see if the leveling
units have returned to the STORE/TRAVEL position before
moving the trailer.

MP45.81
01MAY97
MAINTENANCE
SYSTEM ADJUSTMENT
JACK ADJUSTMENT
LEVEL SENSING UNIT ADJUSTMENT
ADJUSTING
UPPER
STANDARD &
LOW PROFILE
UNITS
ADJUSTING
LOWER
NUT NUT
9,000 lb. JACK
STOP
BELOW THE SURFACE MOUNTING
LEVEL SENSING UNIT
ON TOP
STICKER SCREWS (3)
UP
SIDE
THIS
REAR
SPRINGS (3)
MOUNTING
SURFACE
ADJUSTING
HORIZONTAL
ADJUSTMENT
VERTICAL
ADJUSTMENT
LOCK NUTS,
SET SCREW,
6,000 lb. JACK
There are two basic adjustments which are made at the time
of installation. However, when adjustment of a leveling unit
is needed, the following procedures are recommended.
1. 6,000 lb. JACKS: Always make vertical adjustment first.
If the vertical adjustment is changed at anytime, be sure to
check the horizontal adjustment. Vertical position is chang-
Horizontal stop is adjusted by turning the set screws located
just inside the cable locknuts. The jack can be adjusted down
to provide clearance for objects which may interfere with the
operation of the jacks. The horizontal stop must be adjusted
to provide clearance between the hat bracket and mounting
bolts; and the actuator and hose fittings, when the jack is in
the STORE POSITION. The jack must be able to fully extend
in the horizontal position without interfering with suspension
components, tanks, etc.
2. 9,000 lb. JACKS: Each jack should be checked to be sure
that it is vertical when it swings down. To do this, retract all
jacks, then extend each jack until it is close to, but not touch-
ing the ground. If the jack stopped short of being vertical, it can
be adjusted by loosening the lower adjusting nut and tighten-
ing the upper nut.
The horizontal stop can be adjusted up or down in the slot to
Level the vehicle by placing a circular bubble level in the cen-
ter of the freezer floor or location within the vehicle that is to be
level. With the vehicle level, adjust the sensing unit until all yel-
low lights are off. This is done by drawing up the corresponding
screw if the sensing unit it mounted below the surface, as shown,
or backing out the corresponding screw if the sensing unit is
mounted above the surface. Bump the sensing unit to see that
it has settled down in the level position.
ed by adjusting the lock nuts on the actuator cable. If the jack
stopped short of vertical, tighten the lock nuts. If the jack goes
past vertical, back the lock nuts off. Be sure to adjust each nut
the same number of turns.
provide clearance for objects which may interfere with oper-
ation of the jack. The stop must be adjusted so that the jack
can be fully extended in the horizontal position without inter-
fering with suspension components, tanks, etc.

TROUBLE SHOOTING
The following is a list of problems, and possible solutions, which might occur to the leveling system. ·
vehicle’s suspension and electrical system, as well as an understanding of the leveling system’s hydraulics and electronics
is required.
1. JACK RETRACTS AFTER COACH IS LEVEL.
A. Hose or jack has external leak.
B. Fluid is leaking back to reservoir through solenoid valve.
2. LEVELING JACKS WILL NOT RETRACT COMPLETELY.
A. Actuator rod bent or scored (rod will not move freely).
C. Springs weak or broken.
D. Hydraulic line pinched.
3. UNIT IS EXTENDED BUT NOT VERTICAL.
A. Actuator rod bent.
B. Actuator not functioning properly.
A. Blown fuse, bad control box.
B. Pump solenoid not functioning.
C. 12 Volts from main power source not present.
D. Faulty wire or electrical connection.
6. LEVELING LIGHTS (YELLOW) NOT FUNCTIONING
PROPERLY.
A. Yellow lights will not go out when coach is level: adjust
sensing unit.
B. If more than two yellow lights are on replace sensing unit.
7.WARNING LIGHTS (RED) NOT FUNCTIONING PROPERLY.
A. Light will not come on: check for broken wire at warning
switch on the jack.
B. Lights will not go out bad warning switch or wires are
shorted to ground.
C. Check control box.
C. Pump is not developing pressure.
B. Oil supply low in reservoir.
D. Broken hydraulic line.
5. HYDRAULIC PUMP ACTIVATES, BUT THE JACKS WILL
NOT EXTEND.
A. Bad shuttle valve.
E. Pump not grounded.
C. Check control box.
B. Main rod bent or scored.
4. PANEL ON, BUT NO POWER TO PUMP.
MP55.7
07NOV97
LEVELING SYSTEM
NOTE: Only qualified technicians should install or repair leveling systems on vehicles. A knowledge of hydraulics, welding, the

LF RF
FRONT
RIGHT
FRONT
LEFT
FRONT LEFT
REAR
RIGHT
REAR
PUMP
MOTOR
"T" HANDLES
VALVE RELEASE
PUMP/MANIFOLD
ASSEMBLY
BEFORE OPERATING VALVE RELEASE
"T" HANDLE, READ AND UNDERSTAND
PROCEDURE FOR MANUAL JACK RETRACTION
IN OPERATOR’S INSTRUCTIONS.
MP65.3050
06APR98
VIEW IS SHOWN WITH LEVELING
MANIFOLD ONLY, OTHER MANIFOLDS
MAY BE ATTACHED.
NOTE:
NOTE:
LR RR
HYDRAULIC CONNECTION DIAGRAM
310 SERIES LEVELING SYSTEM WITH FRONT EQUALIZATION
FIFTH WHEEL

MP85.3105
MAKE ALL GROUNDING
CONNECTIONS BEFORE
APPLYING POWER
TO BOX.
05FEB99
A
A
AA
TOUCH
PANEL
#10 WIRE TO GROUND
+12 FROM FUSE 15AMP
MAX - (BROWN) 6100
SENSING
UNIT
SEE CONTROL BOX
ELECTRICAL
WARNING SWITCH
HARNESS
RF
LR RR
STUD - (WHITE) 6230
PACKARD CONNECTORS
COLORS TO A & B ON
DO NOT REVERSE WIRE
CONNECTION
DIAGRAM
LEVEL SYSTEM
HYDRAULIC
MANIFOLD
HARNESS
TO JACK
WARNING
SWITCH
TO JACK
WARNING
SWITCH
TO JACK
WARNING
SWITCH
HYDRAULIC MANIFOLD
ELECTRICAL CONNECTION
DIAGRAM
CONNECTION DIAGRAM
GROUNDING ELECTRICAL
PUMP RELAY ELECTRICAL
CONNECTION DIAGRAM
LEVEL
LF
B
ELECTRICAL CONNECTION DIAGRAM
310 SERIES LEVELING SYSTEM
FIFTH WHEEL
BB
B
(YELLOW)
1000 (WHITE) 6230 (WHITE)
6230
(RED)
2000
(GREEN)
4000
(WHITE)
6230 (BLACK)
3000
6230
(WHITE)
NOTE: THE (4) DIGIT WIRE NUMBER
SUPERSEDES ANY AND ALL WIRE
COLORS.
WIRE TO GROUND STUD
ON BOX - (BLUE) 9000

5 AMP
10 AMP
10 AMP
10 AMP
5 AMP
LR - (BROWN) 4400
RF - (GREEN) 2400
LOCK - (PURPLE) 1410
#10 POWER WIRE -
(BLACK) 6100
ACC. FUSE
RF FUSE
RR FUSE PUMP FUSE
PUMP - (GRAY) 8600
LR FUSE
PART & SERIAL NO.
10 AMP
LF FUSE
LF - (BLUE) 1400
TOUCH PANEL
CABLE INPUT
MP85.3109
08FEB99
10 AMP
ROOM EXTENSION
PUMP CONTROL
TOUCH PANEL
CABLE INPUT
CONNECTION LABEL
LOCK FUSE
RED REAR
GREEN RS
BLACK FRONT
YELLOW LS
WHITE GND
(ONLY USED WITH HWH
ROOM EXTENSION)
LEVEL
SENSING
UNIT
WARNING
SWITCH
HARNESS
15 PIN
10 PIN
ELECTRICAL CONNECTION DIAGRAM
310 SERIES CONTROL BOX
FIFTH WHEEL AND TRAVEL TRAILER
RR - (ORANGE)
3400
#10 GROUND
WIRE - (WHITE)
6230
NOTE: THE (4) DIGIT WIRE NUMBER
SUPERSEDES ANY AND ALL WIRE
COLORS.
GND - (WHITE) 6235
LF - (YELLOW) 1000
RF - (RED) 2000
RR - (BLACK) 3000
LR - (GREEN) 4000
+12 BATTERY -
6100
PRESSURE SWITCH -
(BLACK) 8100
WIRE TO GROUND
STUD ON BOX - (BLUE) 9000

MP85.3111
08FEB99
(GREEN) 2400
(ORANGE) 3400
(BLUE) 1400
(BROWN) 4400
(BLACK) 8100
A
B
A
B
A
B
A
B
A
B
(WHITE) 6241
(WHITE) 6231
(WHITE) 6240
(WHITE) 6241
(WHITE) 6240
(PURPLE) 1410
HYDRAULIC MANIFOLD-PUMP RELAY
ELECTRICAL CONNECTION DIAGRAM
RR LR
LF RF
LOCK
PUMP RELAY DIAGRAM
VIEW FROM TANK END
MANIFOLD DIAGRAM
PUMP/ MANIFOLD
HARNESS
RIGHT FRONT
SOLENOID VALVE (RF)
PRESSURE
SWITCH
+
GROUND
BATTERY
(WHITE) 6231
PUMP MUST BE MOUNTED SOLIDLY TO FRAME. SOME PUMPS HAVE A
GROUND CABLE THAT IS TO BE ATTACHED TO THE GROUND STUD.
* FUSE
* FUSE MAY BE REQUIRED - CHECK APPLICABLE CODE
FRAME, USE THE GROUND STUD TO ATTACH THE
THE PUMP TO THE BRACKET. IF THE PUMP BRACKET
IS BOLTED TO THE FRAME, USE THE GROUND STUD
TO ATTACH THE BRACKET TO THE FRAME.
-
(GRAY) 8600
HYDRAULIC
HARNESS
(BLACK) 6100
FIFTH WHEEL AND TRAVEL TRAILER
VALVE RELEASE
"T" HANDLE
310 SERIES LEVELING SYSTEM
NOTE: IF THE PUMP BRACKET IS WELDED TO THE
SEE POWER UNIT/HARNESS
GROUNDING INSTRUCTIONS
6233
NOTE:THE (4) DIGIT WIRE NUMBER
SUPERSEDES ANY AND ALL WIRE
COLORS.
FUSE
40AMP
NOTE:THE (4) DIGIT WIRE NUMBER SUPERSEDES ANY AND ALL WIRE COLORS.

08FEB99
MP85.3113
+-
Use grounding stud and 3/8" internal
star lockwashers as shown.
GROUND CABLE
STRAP
3/8-16 NUT
FRAME RAIL
(2 USED)
CABLE
STRAP
GROUND
GROUNDING STUD
PUMP MOUNTING
POSITIONS.
PUMP/MANIFOLD HARNESS
GROUP OF WHITE
WIRES 6 INCHES FROM
END OF LOOM TO BE
(NOT USED
ON SOME PUMPS)
(NOT USED
ON SOME PUMPS)
-
GROUNDED TO STUD.
WIRES 6 INCHES FROM
GROUP OF WHITE
GROUNDED TO STUD.
END OF LOOM TO BE
+
WELDED PUMP MOUNT
SURFACE AND WIRE TERMINALS
MUST BE USED BETWEEN GROUNDING
IMPORTANT: STAR LOCKWASHER
PUMP
HARNESS
MANIFOLD
PUMP MOUNTED REMOTE
FROM FRAME
GROUND
STUD
STAR LOCKWASHER
MUST BE USED BETWEEN GROUNDING
SURFACE AND WIRE TERMINALS
IMPORTANT:
SEE HYDRAULIC MANIFOLD/
MANIFOLD GROUND
PUMP RELAY ELECTRICAL
CONNECTION DIAGRAM
MANIFOLD GROUND
SEE HYDRAULIC MANIFOLD/PUMP RELAY
ELECTRICAL CONNECTION DIAGRAM.
POWER UNIT/HARNESS GROUNDING INSTRUCTIONS
310 SERIES LEVELING SYSTEM
FIFTH WHEEL AND TRAVEL TRAILER
(WHITE) 6233
(WHITE) 6231
(WHITE) 6240
(WHITE) 6245
(WHITE) 6230
PUMP MTG.
CHANNEL
3/8-16 NUT
NOTE: THE (4) DIGIT WIRE NUMBER
SUPERSEDES ANY AND ALL WIRE COLORS.
USE GROUNDING STUD AND 3/8" INTERNAL
STAR LOCKWASHERS AS SHOWN.
(WHITE) 6241
(WHITE) 6240
(WHITE) 6231
(WHITE) 6230
6233
NOTE:THE (4) DIGIT WIRE NUMBER
SUPERSEDES ANY AND ALL WIRE
COLORS.
3/8" INT. STAR
LOCKWASHERS
(3 USED)
3/8" INT. STAR
LOCKWASHERS
(4 USED)