OPERATION MAINTENANCE SERVICE MANUAL
SLIDE-N-SEAL SLIDE SYSTEM

www.dexteraxle.com

Introduction
This manual is designed to provide information for you to understand, use,
maintain, and service your Slide-N-Seal slide system. Dexter’s experience
in the design, testing, and manufacturing of quality products that service
the trailer industry.
Two Dexter philosophies are at work to provide you the best product
available and have enabled us to maintain our position of leadership. First,
we operate on the theory that “there is always a better way” for a product
to operate, to be manufactured, and/or to be serviced. We are constantly
striving to find that better way.
Secondly, we maintain the highest quality control standards in the
industry and adhere to ISO 9001:2015. Dexter has operated with detailed
documented processes and procedures long before completing ISO
Certification, continually placing quality and customer service as the focus.
This ensures that critical components are manufactured to the highest
quality standards so that we can provide our customers with dependable
products, the most comprehensive product offering and reliable, consistent
customer service.
Trusting is hard. Knowing who to trust even harder. Through vertical
integration we engineer, design, manufacture and test virtually every part
in-house to ensure superior quality. We fuss over details, so you don’t have
to. Trust Dexter.
Visit us online at www.dexteraxle.com.

Contents
Introduction
Important Safety Notice.........................................................3
Operating Slide Mechanism
Before Operating the Slide Out.............................................. 4
Extending the Slide Out......................................................... 4
Retracting the Slide Out......................................................... 5
Maintenance
Maintenance Schedule.......................................................... 6
System Components
Slide Mechanism....................................................................7
Control Box: Current Limiter...................................................7
Operation...............................................................................8
Main Harness.........................................................................8
Wall Switch.............................................................................9
Rollers....................................................................................9
Wiring Diagram
Wiring...................................................................................10
Switch Wiring.......................................................................11
Service
How to check the voltage to the Slideout............................. 12

Table of Contents

Control Box Replacement.................................................... 12
Disengage Motor.................................................................. 13
Engage Motor...................................................................... 14
Motor Replacement.............................................................. 16
Harness Replacement......................................................... 17
Column Harness.................................................................. 18
Slideout Mechanism Replacement...................................... 18
Removing Slide Mechanism................................................. 19
Installing Slide Mechanism.................................................. 19
Troubleshooting.................................................................... 21

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Appropriate service methods and repair procedures are essential
for the safe, reliable operation of the Slide-N-Seal slide system
as well as the personal safety of the individual doing the work.
This manual provides general directions for performing service
and repair work with tested, effective techniques. Following these
guidelines will help assure reliability.
There are numerous variations in procedures, techniques, tools,
parts for servicing an Slide-N-Seal slide system, as well as in the
skill of the individual doing the work. This manual cannot possibly
anticipate all such variations and provide advice or cautions as
to each. Anyone who departs from the instructions provided in
this manual must first establish that they neither compromise
their personal safety nor the vehicle integrity by their choice of
methods, tools, or parts.
Refer to your unit manufacturer’s owners manual for additional
procedures, techniques, and warnings prior to performing any
maintenance or repairs.

!

CAUTION

This is the safety alert symbol. It is used to alert you to
potential injury hazards. Obey all safety messages that
follow this symbol to avoid possible injury or death.
Dexter strongly emphasizes that each of the maintenance
procedures discussed has a significant safety purpose. Failure
to maintain your Slide-N-Seal slide system can result in a
malfunction and failure of the system. Further, use of any visibly
worn component can result in a malfunction. Safety and long
product life are the number one concern at Dexter. We urge you
to follow the maintenance procedures set out in these written
instructions.
The first maintenance check should be performed after an initial
break-in period of 50 cycles. A visual inspection of all components
should be performed to reveal any obvious problems, such as
cracks or unexpected wear.

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Introduction

Important Safety Notice

Operating the Slide Out Mechanism
The majority of slideout operating malfunctions are due to a poor
power supply; a battery not fully charged, many interior lamps and/
or appliances turned on or trailer not connected to 110V. Before
running any slideout, make sure the trailer is connected to 110V
and the battery is fully charged.

Before Operating the Slideout
1. Park the RV and stabilize it for stationary
use. Make sure the RV is level!
2. Always make sure there is plenty of space for the
room to safely extend to the full outward position.
3. Disengage any travel locks that are in place to keep
the slideout room from moving during travel.
4. Remove any other potential obstructions
to the room movement.
5. Make sure the RV is connected to 110V, or
at least that the battery is fully charged.
6. Do not operate the slide in or out while any
pet or person occupies the space.

Operating Slide Mechanism

Check for any obstructions inside or outside the unit
before operating.

Extending the Slideout
1. Make sure all conditions of the section
“Before operating the slideout” are fulfilled.
2. If the RV is equipped with a slide kill switch, turn it on.
3. Activate the wall switch and move the
slideout room to the full outward position,
until both motors shut off automatically.
4. Check that both sides are moving at the same speed
(2” difference of travel between both sides allowed).
5. Release the switch only when both sides
have stopped automatically.
6. DO NOT MOVE THE RV WHEN
THE ROOM IS EXTENDED.

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1. Make sure all conditions of the section
“Before operating the slideout” are fulfilled.
2. If the RV is equipped with a slide kill switch, turn it on.
3. Activate the wall switch and move the
slideout room to the full inward position, until
both motors shut off automatically.
4. Check that both sides are moving at the same speed
(2” difference of travel between both sides allowed).
5. Release the switch only when both sides
have stopped automatically.
6. Reinstall any travel locks if needed.
Note: Allow one second before operating the slide in the other
direction.
Reminder: The control box protects the user against over travel
Once the end of travel is reached for both motors, the user must
press the switch the other direction.

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Operating Slide Mechanism

Retracting the Slideout

Maintenance
Proper slide-out maintenance is required to ensure full life of
product. Please routinely inspect and maintain the items listed.
Items

Function Required

Slide Rail

*Lubricate with approved grease.

3 Months

6 Months

•

Gear Block

*Lubricate with approved grease.

•

Wiper Seals

Inspect Wipe and Bulb seals for Imperfections

•

Floor Rollers

Inspect for roller contact with room bottom

•

*Silicone lubrication is recommended. Only lubricate slide
components. Wall and related components may be adversely
affected by foreign substance. Refer to OEM manuals for proper
exterior washing if contamination occurs.
Because the mechanism is driven on both sides, it is critical to
keep the drag at a minimal level by:
1. Maintaining the room seal following the manufacturer’s
instructions.
2. Inspecting floor rollers.
3. Making sure no seal is caught between a moving part and
a fixed part: bottom seal between the room floor and the
rollers, side seal between the room wall and the slide out
motor.

Maintenance

4. Keeping the shaft of the floor rollers lubricated. The rollers
must spin when the room is travelling. While inspecting the
rollers, check that they are not digging into the room floor.
Repair or replace any rollers which are not rolling as the
room moves in or out.
NOTE: lubricants that leave residue will attract the dust and create
a grinding compound which will significantly reduce the system
life.

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Slide Mechanism

The slide mechanism itself is the room actuator. The column
houses a motor on each side of the room which drives the room in
and out from the wall.
The slide mechanism is specific to the manufacturer and the room.
There are no standard dimensions

Control Box: Current Limiting
The control box is the brain of the system. Several options of
control boxes are available as standard: current limiting 37% PN
071-834-00 and current limiting 50% PN 071-835-00. The correct
current limiting control has already been selected and installed for
each particular room at the factory.
Once installed, no adjustment is needed by the installer or the
user.
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System Components

System Components

See the “wiring” section.

Operation
When the switch is pressed, it energizes both motors to move the
room in the desired direction. While the motors are spinning, the
electricity going through each motor is monitored. When the current
limiter senses the end of the room travel, each motor will shut off
automatically as each motor senses the end of room travel.
Once the end of travel is reached for both motors, the control box
will only allow the room to move the opposite direction.
If a motor stops before reaching the end of travel, please refer to
the troubleshooting guide to solve the issue.

Main Harness

System Components

The main harness connects both motors to the control box.
(Current limiter)
Make sure the wires are not damaged, are kept concealed and are
not loose.
Do not alter the original harness. The system will not perform

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At the end of the main harness is the motor M2 (see control box
description) identified with a black tape on the plug. It should be
connected to the right column when facing the slide out room from
inside.

Wall Switch

071-836-00 (white) or 071-837-00 (black)

The wall switch is the interface between the user and the system.
Multiple solutions exist and each manufacturer may have their own
preference. The switch could be a stand-alone version or part of a
panel. Above are some examples typically used.
The switch is applying 12VDC to the IN or OUT lead of the control
box. The “wiring” section will show in detail several wiring options.

Rollers
The room weight is supported by the rollers under the slide room.
The slide out is designed to push the room in/out. The slide out will
not carry the load of the room or put the room in motion without
the floor rollers.

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System Components

properly and the life of the system will be shortened.

Wiring Diagram
Wiring

It is critical to have adequate power (at least 12.5V 15A draw) at
the slide control box:
•

A fully charged battery. At best, the coach should be
plugged to 110V.
Failure of adequate power supply could result
in slide out malfunction.

Wiring Diagram

•

The control box wiring should not be altered:
1. The power wires coming from the fuse panel and
connected to the control box “Battery” must be at least
10AWG.
2. Direct wires from the fuse panel to the control box.
3. No other devices should be connected to this
dedicated line (the voltage drop caused by other
devices / appliances will most likely increase the
current drawn by the slide out. As a consequence, the
motor will be shut off before the end of travel).
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The switch must be powered by a 12VDC wire (18AWG minimum).
The power source could be coming from the control box
(brown wire) or from another wire (typically a switch panel). See
below for details.
12VDC should be measured on the wire connected to the IN lead
of the control box when the switch is pressed in the IN direction.
Of course, the room should move IN. If the room is moving in the
opposite direction, both wires must be reversed at the control box.
Standard SPDT Switch: 071-836-00 (white) or 071-837-00
(black)
This type of switch is very common for other types of slide out
applications. They are rated for heavy current.
Used with the in wall slide control box, the wiring is not the same
as with the other systems so make sure to follow the wiring
diagram below.

Note: Some versions have two black leads. The black leads are
not connected to anything and must be capped to avoid a short
circuit.

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Wiring Diagram

Switch Wiring

Service
How to check the voltage to the slideout
Before checking the voltage at different points of the electrical
circuit:
•

Verify all the wires are properly connected.

•

Verify wires are not damaged.

•

Verify connections are not corroded.
1. Connect a voltmeter at the point of measurement: black is
(-) and red is (+).
2. Connect an ammeter on the red wire.
3. Actuate the slide to check the voltage or amp draw.