Service Information
jaCk aSSeMBly reMoval anD rePlaCeMenT
Tools required:
Standard Screwdriver
1/8” Allen Wrench
3/8” Wrench
3/16” Allen Wrench
Needle Nose Pliers
7/16” Wrench
Phillips Screwdriver
Procedure:
Engage the wheel brakes.
Using a standard screwdriver, remove the screw and handle on the Trend crank at the head end of the surgery
platform (see 1033–33–130 Trend Actuator Assembly for part reference).
To gain access to the bottom of the unit, lift the base at the foot end of the surgery platform and tip up the unit until
it rests on its head end.
Remove the base hood (see Base Hood Removal).
Using needle nose pliers, remove the two extension springs on the head end pump/release pedal actuators.
Remove the two roll pins on the inner side of the base frame for the side pump pedal assembly.
Using a 7/16” wrench, remove the pump pedal linkage and release mechanism.
Remove the 3/16” Allen screw at the top of the jack actuator on the jack cradle support.
Using a 7/16” wrench, remove the two sets of nuts and bolts holding the jack assembly to the base.
Reverse the above procedure to install the new jack assembly.
To test the jack operation before returning the unit to service, pump the lift pedal to raise the jack all the way up
and depress the release pedal to lower the jack fully down. Repeat several times.
ConSTanT floW jaCk DeSCenT raTe aDjuSTMenT
adjustment Procedure:
Engage the wheel brakes.
Pump the litter up to full height.
The adjustable jack descent valve has a blue knob on the end and is located on the base of the jack (see Pedestal
Lift Jack Assembly for part reference). To adjust the jack descent rate, turn the silver locking ring counterclockwise
to loosen it. Turn the blue knob clockwise to increase the litter descent rate. Turn it counterclockwise to decrease
the litter descent rate.
Adjust the valve so that the jack at the foot end of the stretcher will descend slightly faster than the jack at the head
end.
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1033-090-002 REV H
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Summary of Contents for Trio 1033
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