Stryker Stryker Stretcher 5051 5051

Loosen the two Phillips head screws on the handle linkage

Release the handle tension spring on the patient’s left side

Adjust the handles so there is a 3/4” gap between the outer Fowler frame and the handle

Tighten the two screws on the handle linkage bar and reattach the spring

It may be necessary to adjust the pneumatic cylinders (see page 25)

Verify proper Fowler operation before returning the stretcher to service

Refer to drawings 5050–32–1 on page 78–81, 5050–33–1 on page 56 & 57 and 5050–30–42 on page 82, for part reference.

Raise litter to full height, set brakes and place unit in dependent mode with the Fowler all the way down.

Using a 1/4” nut driver, remove the self–tapping screws (item AH on page 80) securing the plastic linkage cover (item BH on page 80) and remove the plastic cover.

Using a 5/64” hex Allen wrench, remove the set screw (item F on page 82) from the outer tube weldment.

Using two 7/16” wrenches, loosen the cable retainer (item K on page 82) and the hex nut (item E on page 82) and pull the cable and cover free from the locking linkage.

Using two 9/16” wrenches, remove the hex head bolt (item DL on page 79), washers (item M on page 79) and the hex nut (item Y on page 79) at the foot end of the locking linkage. Let the linkage swing down.

Using a 3/16” hex Allen wrench and a 1/2” wrench, remove the button head fastener (item C on page 56), the washers (item M on page 56) and the hex nut (item R on page 56) at the head end of the locking linkage. The entire linkage should come off easily.

Starting at the head end of the unit, install the replacement locking linkage being sure that the orientation of the linkage is correct (refer to drawing 5050–32–1 page 79). The cable mount side of the locking linkage should be on the inside of the stretcher chair and the extension spring should be toward the bottom of the linkage.

Ensure the lock pin is seated in the inner lock tube before installing.

Pump the litter up to full height

Lift the base hood, separating the Velcro holding it to the base frame

Loosen the silver locking ring by turning it counterclockwise

Adjust the valve so that the jack at the foot end of the Stretcher Chair will descend slightly faster than the jack at the head end

Remove the bungee cords supporting the base hood and secure the hood to the base frame

Lift up the plastic base hood, separating the Velcro holding it to the base frame and, using the bungee cords, suspend it from the litter

Using a 3/32” hex Allen wrench and a 11/32” wrench, remove the 8–32 fastener, washer and nut holding the steerlock arm onto the base

Holding onto the extension spring, twist the steerlock arm back and forth to remove it from the spring

Using pliers, remove the spring from the steerlock weldment over the caster and discard it

Grease the end of the steerlock weldment and install the replacement extension spring onto it until the spring reaches the bend in the steerlock weldment arm

Grease the end of the steerlock arm and, while holding the extension spring, insert the steerlock arm into the spring until it reaches the bend in the steerlock arm (rotating the steerlock arm while pushing on it may help)

Reconnect the steerlock arm to the base with the 8–32 fastener, washer, and nylon lock nut and tighten

Actuate the brake steer pedal and ensure the steerlock latch engages into the notch in the locking caster

Remove square head set screws from both head and foot end jack support tubes

Remove litter top, taking care not to damage the leg section linkages and other litter components

Lift off the plastic base hood, separating the Velcro holding it to the base frame

Lower the jack to the full down position

Using a 3/4 open end wrench, slowly turn the fill plug located on the side of the reservoir counterclockwise to allow excess system pressure to vent

Is the hydraulic fluid visible at the bottom of the fill hole?

If not, add Mobil Aero HFA hydraulic fluid (Stryker part number 2020–70–475) until the fluid is visible at the bottom of the fill hole