Lippert Tiffin Through Frame Low profile Slide-out User manual

Tiffin Through Frame
Low profile Slide-out
OEM INSTALLATION MANUAL

Rev: 08.20.21 Page 2 CCD-0003696
TABLE OF CONTENTS
Introduction 2
Safety 3
Resources Required 4
Slide-outs onto the Chassis 4
Install the Room Mounted Brackets to the Hydraulic Slide-out 5
Slide Room Preparation 6
Installing the Slide Room 6
Attach Room Mounted Brackets to the Slide Room 7
Attach the Slide Room Fascia 8
Horizontal Room Adjustment 9
Vertical Room Adjustment 9
Slide-out Extend/Retract Adjustments 10
Adjusting the Slide Room's Retracted Position 10
Adjusting the Slide Room's Extended Position 10
Hydraulic Power Unit 11
System Wiring Requirements 13
Purging the Hydraulic system 14
Fluid Recommendation 14
Purging the System 14
Slide-out Prior to Operation 15
Operation 15
Extending Slide-out Room 15
Retracting Slide-out Room 15
Slide-out Troubleshooting 16
Manual Override 17
Resources Required 17
Slide-out Wiring Diagram 19
Hydraulic Plumbing Diagram 20
Notes 21
Introduction
The Hydraulic Slide-out System's purpose is to hydraulically actuate slide-out rooms. Its function should
not be used for any purpose or reason other than to actuate the slide-out room. To use the system for any
reason other than what it is designed for may result in death, serious injury or damage to the coach.
Additional information about this product can be obtained from lci1.com/support or the LippertNOW app is
available for free on Apple App Store® for iPhone® and iPad® and also on Google Play™ for Android™ users.
App Store® and iPad® are registered trademarks of Apple Inc.
Google Play™ and Android™ are trademarks of Google Inc.
For information on the assembly or individual components of this product, please visit:
https://support.lci1.com/through-frame-selections
NOTE: Images used in this document are for reference only when assembling, installing and/or operating
this product. Actual appearance of provided and/or purchased parts and assemblies may differ.

Rev: 08.20.21 Page 3 CCD-0003696
Safety
Read and understand all instructions before installing or operating this product. Adhere to all safety labels.
This manual provides general instructions. Many variables can change the circumstances of the instructions,
i.e., the degree of difficulty, operation and ability of the individual performing the instructions.
This manual cannot begin to plot out instructions for every possibility, but provides the general instructions,
as necessary, for effectively interfacing with the device, product or system. Failure to correctly follow the
provided instructions may result in death, serious personal injury, severe product and/or property damage,
including voiding of the Lippert limited warranty.
Always make sure that the slide-out room path is clear of people and objects
before and during operation of the slide-out. Always keep away from the
gear racks when the room is being operated.
The “CAUTION” symbol above is a sign that a safety risk is involved and may cause personal injury
and/or product or property damage if not safely adhered to and within the parameters set forth
in this manual.
Always wear eye protection when performing service, maintenance or installation procedures.
Other safety equipment to consider would be hearing protection, gloves and possibly a full face
shield, depending on the nature of the task.
Moving parts can pinch, crush or cut. Keep clear and use caution.
Failure to follow instructions provided in this manual may result in death, serious personal injury
and/or severe product and property damage, including voiding of the component warranty.
During servicing make sure that the coach is supported according to the manufacturer's
recommendations. Lift the coach by the frame and never the axle or suspension. Do not go under
the coach unless it is properly supported. Unsupported coaches can fall causing death, serious
personal injury or severe product and/or property damage.
The “WARNING” symbol above is a sign that a procedure has a safety risk involved and may
cause death or serious personal injury if not performed safely and within the parameters set forth
in this manual.
Before actuating the system, please keep these things in mind:
1. Parking locations should be clear of obstructions that may cause damage when the slide-out
room is actuated.
2. Be sure all persons are clear of the coach prior to the slide-out room actuation.
3. Keep hands and other body parts away from slide-out mechanisms during actuation.
4. To optimize slide-out operation, park coach on solid and level ground.

Rev: 08.20.21 Page 4 CCD-0003696
Resources Required
• Personal protective equipment
(PPE) for welding
• Cordless or electric drill
or screw gun
• Oxyacetylene torch
• Welder
• Ratchet and sockets
• Open-end/box-end wrenches
• Jack stands
Slide-outs onto the Chassis
Fig. 1
A
B
C
Do not work on the slide-out system unless the battery is disconnected.
Failure to act in accordance with the following may result in death or serious personal injury.
Cover the hydraulic cylinder rods during production to avoid contamination on rods and damaging
the seals when the slide is extended and retracted. Failure to do so could cause permanent
damage to the component.
1. Place the drive-side, slide-out assembly (Fig. 1A), into the fabricated channel (Fig. 1B) with the
slide-out assembly upside down in the channel.
2. Stitch weld (Fig. 1C, red lines) the slide-out assembly brackets onto the fabricated channel as per
OEM specifications.
3. Flip the welded slide-out channel over and weld into the chassis (Fig. 2), three stitch welds on each
side (Fig. 2A, red lines) as per OEM specifications.
4. Repeat steps 1-3 for the idler and other drive slide-out assembly.
Fig. 2
A
• Floor jacks
• Tape measure
• Torque wrench
• Fire extinguisher

Rev: 08.20.21 Page 5 CCD-0003696
Install the Room Mounted Brackets to the Hydraulic Slide-out
1. Align the room mounting bracket (Fig. 3B) four holes with the four holes in the inner arm of the
hydraulic slide-out (Fig. 3A).
2. Attach a 5/16" flat washer (Fig. 3D) on a 5/16" -18 x 1" bolt (Fig. 3C) and attach the room mounting
bracket to the inner arm of the hydraulic slide-out.
3. Repeat step 2 for the other holes (Fig. 4).
4. Make sure the two welded bolts (Fig. 5A) for the vertical adjustment on the backside of the room
mounting bracket have a 5/16" flat washer (Fig. 5B) and 5/16" nut (Fig. 5C) installed. Later in the
installation, the top portion of the bracket can be adjusted vertically for final slide room adjustment.
5. Repeat step 4 for the other room mounting brackets (Fig. 6A).
B
C
D
A
Fig. 3 Fig. 4
Fig. 5 Fig. 6
A
ABCA
A
A

Rev: 08.20.21 Page 6 CCD-0003696
Installing the Slide Room
1. Place the slide room 3/4 of the way into the slide opening (Fig. 7).
2. Center the slide room in the slide opening and the head assembly on the slide-out inner arm.
Make sure gaps on both sides are even (Fig. 8A). Gaps will vary by coach. A commonly-used wall to sidewall
gap is 1½". Specific wipe and seal recommendations can be obtained from a wipe and seal vendor to ensure
the gaps are correct.
If the slide-out room is too tight, it may damage the seals and cause excessive
stress to the slide-out system.
Slide Room Preparation
1. Make sure coach is parked on solid, level ground.
The coach MUST be supported per manufacturer's recommendations before working
underneath. Failure to do so may result in death, serious personal injury and/or severe product or
propertydamage.
2. Make sure the coach is level and supported in accordance with manufacturer's recommendations.
3. Inspect slide-out mechanism to make sure that all stop blocks are intact and that there are no missing
or damaged parts.
Fig. 7
Front View
Fig. 8
Profile View
Slide
Room
Slide
Opening
Inside
Floor
3/4
A A

Rev: 08.20.21 Page 7 CCD-0003696
Attach Room Mounted Brackets to the Slide Room
1. Once the slide-out room is in place, use the middle of the pre-drilled holes in the room mounting bracket
(Fig. 9A) as a guide to drill 11/32" pilot holes up through the floor of the slide room. These pilot holes will
be used as the guides to install the bolts down through the floor into the room mounting brackets.
2. At the pilot holes (Fig, 10C), install a 5/16" x 1 1/2" bolt (Fig. 10A) with a 5/16" flat washer (Fig. 10B) down
through the slide room floor and into the room mounting bracket.
3. Repeat step 2 for the other four pilot holes in the slide room floor.
A
A
Fig. 9
4. Attach a 5/16" flat washer (Fig. 11B) and 5/16" nut on (Fig. 11C) the backside of the 5/16" bolt (Fig. 11A).
5. Repeat step 4 for the other four bolts on the other room mounting brackets (Fig. 12A).
Fig. 11 Fig. 12
A
B
C
A AA
Fig. 10
A
B
C
A
B
C

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Do not attempt to operate the slide room until both the exterior T-molding and the interior fascia
are attached to the slide room.
1. Attach the interior slide room fascia.
2. Interior slide room fascia must be attached prior to operating the slide room for safety precautions.
3. Apply Tripolymer sealant to the back of the upper exterior wipe seal and lay it over the top of the
vertical wipe seal on the column (Fig. 13A).
Fig. 13
A
Attach the Slide Room Fascia

Rev: 08.20.21 Page 9 CCD-0003696
Vertical Room Adjustment
If one side of the room is lower or higher than the other, make adjustments to just the affected side. If the
entire room needs to be raised or lowered, all three room mounting bracket vertical adjustment nuts
(Fig. 14B) will need to be adjusted to the same level, starting with one side, the middle and then the other side.
To raise or lower the slide room:
1. Loosen the nuts (Fig. 14B) on the room mounting bracket, adjust the room accordingly up or down.
Once room height is positioned, tighten the nuts (Fig. 14B).
2. Repeat step 1 for the other room mounting brackets if the entire slide room needs to move up
or down, moving next to the middle room mounting bracket and then the opposite side room
mounting bracket.
Horizontal Room Adjustment
To move the slide room side to side:
Only perform this procedure if room is not centered in the slide opening. The room should be centered on
initial install. Room should be 3/4 of the way into the slide opening.
1. Loosen all the nuts (Fig. 14A) on each room mounting bracket (Fig. 12A), six total nuts.
2. Position room horizontally by pushing on the outside slide box end wall to make sure the box is
centered in the slide room opening (Fig. 8A).
NOTE: Gap on each side should be equal.
3. Tighten all the nuts (Fig. 14A) on each room mounting bracket (Fig. 12A), six total nuts.
Fig. 14
A
B

Rev: 08.20.21 Page 10 CCD-0003696
Slide-out Extend/Retract Adjustments
Adjusting the Slide Room's Retracted Position
If the slide room does not seal:
1. Locate the cylinders (Fig. 15H) underneath the slide out.
2. Run the room partially out.
3. Adjust the specialty stop bell (Fig. 15G) and the jam nut (Fig. 15F) on each cylinder towards the bracket
(Fig. 15C) and run the room in until the proper retracted seal is achieved.
4. Turn both specialty stop bells (Fig. 15G) towards the cylinder (Fig. 15H) until they stop. Tighten the jam
nut (Fig. 15F) against the specialty stop bell (Fig. 15G) to hold it in place.
5. Tighten the nut (Fig. 15B ) against the bracket (Fig. 15C) until it stops. Tighten jam nut (Fig. 15A)
against the nut (Fig. 15B) to hold it in place.
NOTE: Make small adjustments, running the room in after each adjustment until proper seal is achieved.
Adjusting the Slide Room's Extended Position
If the slide room does not fully extend:
1. Locate cylinders (Fig. 15H) underneath the hydraulic slide-out.
2. Completely extend the slide out room.
3. Check the inside fascia and seal positioning.
4. Partially retract room.
5. If the extended room seal is inadequate, loosen the jam nuts (Fig. 15E) and turn the nuts (Fig. 15D)
towards the bracket (Fig. 15C).
6. Extend the room and verify that proper extended seal has been achieved. Tighten the jam nuts
(Fig. 15E) against the nuts (Fig. 15D) to lock them in this position.
NOTE: Make small adjustments, running the room out after each adjustment until proper seal is achieved.
Fig. 15
B C E F G
Front of
Slide-out
H
D
A