Stryker Stretcher FL19F

Jacks lowered completely using the appropriate release pedal

Base moved from underneath the supported stretcher litter to an appropriate working area

Plastic base hood lifted off, separating the Velcro fasteners holding it to the base

Locknut and bolt linking the activation bar to the pump piston removed using a 1/2” combination wrench and a 1/2” socket

Pump spring of the jack needing replacement compressed using a spring compression tool

Spring and shoulder socket removed from the pump piston

Two locknuts and two bolts holding the jack clamp to the frame removed using a 1/2” combination wrench and a 1/2” socket

Four locknuts, four washers, and four bolts holding the jack base to the base frame removed using a 9/16” combination wrench and a 9/16’ socket. Jack base supported before removing the fasteners

Remove the mattress, raise the rails to the highest position and apply the brakes

Using a #1 Phillips screwdriver, remove the eight screws (A) holding the bottom half of the lower plastic cover (B) to the top half of the lower plastic cover (C)

Insert a small regular screwdriver between the two halves of the lower plastic cover to separate them. Use caution to avoid scratching the covers or damaging the upper cover snap pins

Using a #2 Phillips screwdriver, remove the two screws (D) holding the lower end of the central column to the lower structural member (E)

Using a #1 Phillips screwdriver, remove the eight screws (F) holding the top half of the upper plastic cover (G) to the bottom half of the upper plastic cover (H)

Insert a small regular screwdriver between the two halves of the upper plastic cover to separate them. Use caution to avoid scratching the covers or damaging the lower cover snap pins

Lower the rail to the 14” locking position and place adjustable supports under the rail to support it when the central column is removed

Using a cordless drill and a #2 Phillips bit, remove the 14 screws (J) holding the upper end of the posts and the central column to the upper structural member

Using a 1/2” socket, remove the two bolts and two washers (L) holding the upper end of the two guide posts to the structural member (K)

Rail raised to the highest position and brakes applied

Eight screws removed using a #1 Phillips screwdriver

Lower plastic cover separated without scratching the covers or damaging the upper cover snap pins

New lower cover installed by reversing the above steps

Proper operation of the rails verified before returning the stretcher to service

Sign off on the lower plastic cover replacement

Raise the rails to the highest position and apply the brakes

Lift the base hood, separating the Velcro fasteners holding it to the base, and support it using bungee cords

Using a 1/2” combination wrench and a 1/2” socket, remove the four locknuts (B) and four bolts (A) holding the fifth wheel assembly to the support plates (C, M). Lower the assembly to the ground and remove it by taking the assembly out underneath the base frame

Using two 1/2” combination wrenches, remove the locknut and bolt (D) holding the caster to the wheel arms (E). Remove the caster

Move the left support plate (C) towards the Brake / Steer pedal (F) to disengage the swing arm and torsion level assembly from the support plates

Using a 1/2” combination wrench, remove the locknut (G) holding the spring hook to the bolt

Using two 1/2” combination wrenches, remove the two locknuts (J), four shoulder spacers and two bolts (H) holding the top part of the counter lever to both fifth wheel torsion levers

Using a 1/2” combination wrench and a 3/16” Allen wrench, remove the two locknuts (L) and two bolts (K) holding the torsion levers to both ends of the fifth wheel shaft

Remove the defective wheel arm assembly

Raise the rails to the highest position and lower the litter to the lowest height. Apply the brakes.

Lift the base hood, separating the Velcro fasteners holding it to the base, and support it using bungee cords.

Using a 13/16” combination wrench, remove the adjustable P.C. valve (N).

Check for any contaminants in the valve and in the jack base.

Install the new P.C. valve. Moisten the O-ring seal with hydraulic fluid to ensure a tight seal.

Tighten the valve by hand and then add an additional 1/8 to 1/4 turn with a 13/16” combination wrench.

Pump the jack to the highest position. Apply weight to the stretcher and ensure the jack holds. Verify there are no hydraulic leaks.

Remove the bungee cords and replace the base hood.

Sign off on the valve replacement procedure