Ferno 175 Series Referenzhandbuch

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 tscoordinator@ferno.com.

Additional copies of this technical service bulletin are available upon request by calling Ferno at 1.800.733.3766.

Ferno Technical Service Bulletin

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.

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.

Removable Model 175

(Mounts with Knobs to

Floor Plates)

Permanent Model 175

(Mounts with User-Installed

Bolt Through Floor)

Inspect For Damage

(Wear, Pitting, Divots)

Ferno Technical Service Bulletin

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.

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.

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.

Ferno Technical Service Bulletin

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.

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)

Ferno Technical Service Bulletin

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.

Detent Button

(Lock Activation)

Stop Casting

(Non-movable Jaw)

Release Handle

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 Technical Service Bulletin

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

Ferno Technical Service Bulletin

Antler to Rail Measurement

Series

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)

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.

Measurement

Ferno Technical Service Bulletin

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.

Ferno Technical Service Bulletin

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 Technical Service Bulletin

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.

The Undercarriage or Legs Must Have

Clearance to Extend and Retract

Safety Hook

Safety Bar

Face

4”Safety Hook

2.5”Safety Hook

“J” Safety Hook

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