Service Information
11
LITTER TOP REMOVAL
Required Tools:
1/2” Socket w/Extension
3/8” Drive Ratchet
Standard Screwdriver
1.
Using the foot pedal, pump up the litter top to full height.
2.
Remove the stretcher mattress
3.
Remove the round, black hole plugs from the jack supports at each end of the litter to expose the jack
support tube truss head screws.
4.
Using a 1/2” socket, and a 3/8” drive ratchet, remove the truss head screws holding the jack support tubes
to the jack shafts.
5.
Thread a 7/16−20 fine thread bolt far enough into the top of the jack supports to separate the litter top
from the jack shaft.
6.
With the assistance of another person, lift the litter straight up to remove it from the jack shafts and set
it aside.
JACK DESCENT RATE ADJUSTMENT
Required Tools:
Screwdriver
Bungee Cords (or equivalent)
Adjustment Procedure:
1.
Pump the litter up to full height.
2.
Lift the base hood, separating the hood from the base frame. Support the hood from the litter using bun-
gee cords so it is out of the way.
3.
The descent rate needle valve is located on the base of the jack. Turning the needle valve clockwise,
with a screwdriver, will decrease the rate of descent. Turning it counterclockwise will increase the rate
of descent.
NOTE
The larger percentage of a patient’s weight is located in the torso area. Adjust descent rate accordingly.
4.
Remove the bungee cords supporting the base hood and secure the hood to the base frame.
NOTE
The jack descent rate is preset at the factory and adjustment is not recommended.
REMOVAL OF EXCESS AIR (VACUUM) FROM THE HYDRAULIC SYSTEM
1.
Verify all hydraulic linkages are secure and operating properly.
2.
Using the pump pedal, actuate the system several times to force the air through the system. The jack
should now raise properly.
