Ferno 175 Series Reference manual

© Ferno-Washington, Inc. / 234-3601-00 1
Technical Service Bulletin
Ferno Antler and Rail Fastening System
To Our Valued Ferno Customers:
Ferno Model 175 Series Fastening Systems limit the movement of a Ferno ambulance cot inside the patient compartment of
an ambulance. Regular inspection and preventive maintenance are critical to ensuring proper performance of cot fastening
systems. Failure to maintain the fastening system puts EMS personnel and patients at risk for injury.
This Ferno Model 175 Series Fastening System Technical Service Bulletin addresses inspection, proper placement, and
preventive maintenance of your antler and rail, safety hook, and oor plates, and includes identication of common wear-
and-tear issues.
For additional assistance on Ferno Model 175 Series Cot Fastening System preventive maintenance, please contact Ferno
Technical Support at 1.877.733.0911, or email to [e-mail].
Additional copies of this technical service bulletin are available upon request by calling Ferno at 1.800.733.3766.

© Ferno-Washington, Inc. / 234-3601-00
Ferno Technical Service Bulletin
2
WARNING
Improper maintenance can cause injury. Maintain the
fastening system and cot only as described in each
product’s users’ manual.
This document contains inspection, placement, and
related information as a service to EMS personnel. For
complete instructions on proper use, maintenance, and
operation of Ferno products, refer to the users’ and or
installation manuals.
1
X-Frame Cots: Post
Typically Attached
to Lower Frame
H-Frame Cots: Post
Typically Attached
to Upper Frame
1 Inspect the Cot Retaining Post
1. Inspect the retaining post attached to the Ferno cot (examples
shown in Figure 1). Verify the post is properly secured to the cot.
2. Verify the retaining post is fastened securely to the cot. Check that
all nuts and bolts are tight and present. Replace loose or missing
nuts and bolts.
3. Inspect the retaining post for wear and damage (Figure 2). If the
surface of the post has pits or divots from contact with the rail
release button, replace the post. A worn retaining post may not
activate the rail release button.
2 Inspect the Antler
1. Inspect the antler (Figure 3). Verify it is properly secured to the
oor and all fasteners are tight and present.
2. Inspect the antler hooks. Are they in the proper position, and not
bent or twisted? If removable mounting blocks are present, verify
the slope of the blocks is away from the center of the antler, as
shown in Figure 3.
3. Replace loose or missing knobs, blocks, bolts, nuts, etc.
3
Removable Model 175
(Mounts with Knobs to
Floor Plates)
Permanent Model 175
(Mounts with User-Installed
Bolt Through Floor)
2
Inspect For Damage
(Wear, Pitting, Divots)

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3 Inspect the Rail
1. Inspect the rail (Figure 4). Verify it is properly secured to the oor
or wall, and all fasteners are tight and present.
2. Inspect the clamp that secures the rail to the bracket. Is the rail
clamp in the proper location? The clamp may be moved up or
down on the bracket (Figure 5 and Figure 6). Verify the rail is held
at the proper height for the cot retaining post.
4
Removable
Floor-Mounted Rail
Permanent
Floor-Mounted Rail
Wall-Mounted Rail
WALL BRACKET
The rail clamp can be
mounted at any of three
positions.
Use the position that
best allows the rail jaws
to grasp the center of the
fastener post on the cot.
5
FLOOR BRACKET
The rail clamp can be
mounted at any of three
positions.
Use the position that
best allows the rail jaws
to grasp the center of the
fastener post on the cot.
6

© Ferno-Washington, Inc. / 234-3601-00
Ferno Technical Service Bulletin
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3. Is the rail clamp properly tightened to secure the rail?
○Is the rail too loose? (If loose, the rail can be rotated or moved
inside the clamp.)
○Is the rail too tight? (If tight, Inspect for damage. Look for dented
or crushed rail tubing.)
○Is the rail clamp positioned properly? The rail clamp must not
cover the red line on the adjustment-limit label (Figure 7).
○If adjustment is needed, follow the procedure in “Adjusting the
Rail Clamp”below.
7
Adjusting the Rail Clamp
1. Load a compatible Ferno cot into the fastening
system.
2. Verify the antler hooks properly engage the loading-
wheel forks of the cot.
3. Verify the rail jaws properly grasp the center of
the fastener post. If not, adjust the rail clamp so it
secures the cot but does not cover the red line on the
adjustment-limit label (Figure 5):
○Adjust the height of the rail clamp on the mounting
bracket if needed.
○Adjust the rail clamp side-to-side within the
adjustment range indicated by the adjustment-limit
label (Figure 5). The rail clamp must not cross the
red line on the label.
4. Secure the rail to the bracket. Use a torque wrench
and tighten the rail clamp screws in an X-pattern
to provide even pressure. Set the torque wrench as
follows:
○180 inch-pounds OR
○15 foot-pounds OR
○20.337 Newton-meters
Note:Do not apply oil or lubricant to the screws prior to
tightening.
WARNING
Improper adjustment can cause injury. Stay within the
range between the jaw and the adjustment limit label.
Important
The adjustment limit label ensures the cot will be held near
the reinforcements oered by the bracket. Do not exceed the
adjustment range between the jaw and the label.
Adjustment Limit Line (Red) Adjustment Range
Stop Casting
(Non-movable Jaw)

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WARNING
Pressing the detent button with your ngers can cause
injury. Use caution when inspecting or lubricating the jaw
shaft. Always use the cot to activate the detent button.
8
Detent Button
(Lock Activation)
Stop Casting
(Non-movable Jaw)
9
Release Handle
10
Detent Button Wear
(Hole Elongated)
Stop Casting Wear
(Worn Edges/Shape)
4. Inspect the rail tube. Is the tube bent or damaged?
5. Inspect the locking jaws and detent button (Figure 8) but do not
activate it with your ngers. This can cause injury. Use only a
cot to activate the lock. Inspect the following:
○Is the hole around the detent button worn (Figure 9)?
○Is the button present and does it function properly, with proper
spring-activated action?
○Is the stop casting (non-movable jaw) in good condition, without
excessive wear? For an example of damage, see Figure 9.
6. Inspect the release handle at the far end of the rail from the
locking mechanism (Figure 10). Is the mechanism tight? Is the
handle in good condition and does it function properly? If the
release handle is loose, turn it clockwise to tighten.

© Ferno-Washington, Inc. / 234-3601-00
Ferno Technical Service Bulletin
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4. Inspect for Proper Placement
Of the Cot Inside the Ambulance
KKK SPECIFICATION THROUGH CHANGE NOTICE 7
U.S.A. Federal Ambulance Specication KKK-A-1822 revision F, Section
3.10.4 (through Change Notice 7) requires the cot to be within a certain
distance of the ambulance attendant’s chair seat back and rear doors
(Figure 11).
Be Aware: Not all states require or use the KKK-A-1822 specication. If
your state does not require ambulances to meet this specication, you
may skip this section.
1. With the cot secured in the fastening system, measure from the
foot end of the mattress to the closed rear ambulance doors. Is
the distance 10”(254 mm) or more?
2. With the cot secured in the fastening system, measure from
the head end of the mattress to the seat back surface of the
attendant’s seat. Is the distance 25” (635 mm or more?
3. Verify the Model 175 fastening system is installed to meet both
requirements. Follow your state and local protocols to verify the
cot is positioned to meet both minimum distances.
Positioning Tip
If space is limited, be aware that KKK species
the end of the mattress to be 10" (254 mm)
from the rear doors. In many cases, the end of
the mattress does not lie at the end of the cot.
If needed, position the cot closer to the
rear doors to meet the attendant’s chair
specication and allow the operators to easily
grasp the cot from outside the ambulance.
KKK-A-1822
Change Notice 8 (July 1, 2015)
If your state requires new ambulances to meet the KKK
specication published by the U.S. General Services
Administration, be aware that the Model 175 fastening
system no longer complies as of July 1, 2015. Contact Ferno
for compatible fastening systems and ambulance cots. See
“Ferno Customer Relations”on page 12.
Ambulances already purchased and/or in service with
Model 175 are not required to be updated to meet
Change Notice 8. Meaning: the Change Notice applies only
to new fastening systems installed on new ambulances.
Cots and ambulances already in use are not required to be
updated.
Rear Doors
25”(635 mm)
Minimum
10”(254 mm)
Seat Back
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Antler to Rail Measurement
Series
C
Distance
(Antler to Rail)
25, 26 46.187” 1173 mm
35X-EFNY 46.886" 1191 mm
35A, 35A+ 52.187” 1326 mm
PROFlexx 35P, 35X 51.529” 1309 mm
POWERFlexx 51.529” 1309 mm
93ES, 93EX 52.439” 1332 mm
PROFlexx 93P, 93H 52.439” 1332 mm
All measurements +/- .125”(3 mm)
12
Measurement
5. Inspect for Proper Placement
of the Antler and Rail
ANTLER TO RAIL LENGTH MEASUREMENT
Are the antler and rail the proper front-to-back distance from one
another? Does the cot t properly in the fastening system? Refer to the
measurement in the table at right, Figure 12, and the instructions below.
1. Using a pencil and ruler or straight edge, mark a line perpendicular
to the rail release button on the oor.
2. Using a pencil and ruler or straight edge, mark a line from the
inside of the antler hook to meet the line you made in Step 2.
3. Verify the antler and rail are the proper distance apart and the cot
ts properly into both fastening-system components.
ANTLER TO RAIL CENTERLINE MEASUREMENT
Are the antler and rail the proper side-to-side distance from one
another? Refer to Figure 13 and the instructions below.
1. Using a pencil and measuring tape, mark a line from the center of
both antler mounting blocks to the rail.
2. Using a pencil and measuring tape, mark a line perpendicular to
the line you made in Step 1 to the center of the rail bracket.
3. Verify the antler and rail are the proper distance apart.
○A wall-mounted rail should be 13” (330 mm) from the antler
centerline.
○A oor-mounted rail should be 14-1/2”(368 mm) from the antler
centerline.
13
Measurement

© Ferno-Washington, Inc. / 234-3601-00
Ferno Technical Service Bulletin
8
MODEL 175 MAINTENANCE
Maintenance Schedule
The fastening system requires regular maintenance. Set up and follow a
maintenance schedule. The table at right represents minimum intervals
for maintenance. Keep maintenance records.
When using maintenance products, follow the manufacturers’ directions
and read the manufacturers’material safety data sheets.
Disinfecting and Cleaning
● To disinfect: Wipe all surfaces with disinfectant. Follow the
disinfectant manufacturer’s instructions for application method
and contact time. Inspect the fastening system for damage as you
disinfect it.
● To clean: Hand clean all surfaces of the fastening system with
warm water and a mild detergent. Rinse with warm, clear water.
Dry with a towel or allow the fastening system to air-dry.
WARNING
Improper maintenance can cause injury. Maintain the
fastening system only as described in this service bulletin,
or the users’ manual.
Pressing the detent button with your ngers can cause
injury. Use caution when lubricating the jaw shaft. Always
use the cot to activate the detent button.
Important
Disinfectants and cleaners containing bleach, phenolics, or
iodines can cause damage. Do not use products containing
these chemicals.
Using abrasive cleaning compounds or applicators on the
fastening system can cause damage. Do not use abrasive
materials to clean the fastening system.
Using Teon or silicone-based lubricants can lead to silicone
buildup on parts, causing damage. Use only the lubricants
specied in this service bulletin or the users’ manual.
Table 3 - Minimum
Maintenance Each Use As Needed
Disinfecting (this page) •
Cleaning (this page) •
Lubricating (this page) •
Routine Inspection (page 9) •
Lubricating the Jaw Shaft
Disinfect and clean the fastening system before applying lubricant.
To lubricate the jaw shaft, push the release handle until the jaws lock
in the unlocked (open) position. Apply a small amount of WRL-191-S or
white lithium grease to the shaft of the movable jaw (Figure 14).
After applying lubricant, cycle the jaw a few times, using only the cot to
activate the detent button.
● Do not use your ngers to activate the detent button.
● Do not use Teon or silicone-based lubricants.
14

Ferno Technical Service Bulletin
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Inspecting the Fastening System
Have your maintenance personnel inspect the fastening system
regularly. Follow the checklist below and operate the fastening system
through all its functions as described in this service bulletin or the users’
manual.
If inspection shows damage or excessive wear, remove it from service
until repair is made.
See the recommended Minimum Maintenance table on page 8.
Routine Inspection Checklist
● Are all components present?
● Is the fastening system free of excessive wear?
● Are all parts in good condition (no cracks, corrosion, or
damage)?
● Do all moving parts operate smoothly and properly?
● Does the fastening system lock and unlock properly?
● Can the cot be loaded into and unloaded from the
fastening system properly?
● Do the antler hooks properly engage the cot loading
wheel forks (or transport-wheel forks on a Model 30
Series cot)?
● Do the rail jaws rmly lock onto the center of the
fastener post on the cot?
● For removable components: do the components lock
properly to the oor plates?
● Is the fastening-system setup worn? Has exposure to
the environment caused noticeable damage? Inspect
the ambulance oor (and wall, for wall-mounted
components) including beneath the ambulance.
● Continue to monitor the integrity of the fastening
system.
● Are the required backing plates present, and are they
securely welded to primary a structural member of the
ambulance oor?
● Is all hardware tight? Verify the hardware is tight but
is NOT pulling through the backing plates (See the
Important notices at right).
WARNING
Pressing the detent button with your ngers can cause
injury. Use caution when lubricating the jaw shaft. Always
use the cot to activate the detent button.
Important
If the required backing plates are not present, take the
ambulance out of service and have the backing plates
installed. Then, install a new fastening system.
Make sure all connections are tight, but do not overtighten.
Overtightening can cause damage. See “Adjusting the Rail
Clamp” on page 4.
If inspection indicates components are pulling through the
backing plates, remove the fastening system. Install a new
fastening system and new backing plates.

© Ferno-Washington, Inc. / 234-3601-00
Ferno Technical Service Bulletin
10
INSPECTING THE FERNO SAFETY HOOK
Safety Hook Purpose
The safety hook is designed to prevent the cot from being rolled out of
the ambulance and secure the cot while the operators extend or retract
the legs. After the legs are locked, the cot may be disengaged from the
safety hook.
A correctly-positioned safety hook allows the cot to be loaded into the
ambulance and unloaded from the ambulance without interference,
but will engage the safety bar during every loading and unloading
sequence (Figure 15).
Versions: Ferno oers three safety hooks (Figure 16). Select and install a
safety hook that accommodates your ambulance. If the position of your
safety hook is incorrect, contact Ferno to order a safety hook. See“Ferno
Customer Relations” on page 12.
WARNING
Failure to install and use a compatible Ferno safety hook
(provided with the cot) can cause injury. Install and use
the cot only with these items.
Improper installation can cause injury. Install the safety
hook so the safety bar will engage the hook during every
loading and unloading sequence.
Modifying the cot can cause injury and damage. Use the
cot only as designed by Ferno.
Important
A properly-positioned, compatible Ferno safety hook must be
used with Ferno cots. Diculty loading and/or unloading may
result from improperly placed components.
Before installing the safety hook, consult the ambulance
manufacturer for the location of wiring and other elements
under the ambulance oor, and about the ambulance
warranty.
15
The Undercarriage or Legs Must Have
Clearance to Extend and Retract
Safety Hook
Safety Bar
16
Face
Face
Face
4”Safety Hook
2.5”Safety Hook
“J” Safety Hook