7. Using a 3/4” socket, slowly turn the fill plug (located on the side of the reservoir) counter-clockwise to allow excess
system pressure to vent. Remove and save the fill plug.
8. The hydraulic fluid should be visible at the bottom of the hole. If the fluid cannot be seen, add M
Mo
ob
biill™ Aero HFA
hydraulic fluid until the fluid level reaches the bottom of the hole.
9. Replace the fill plug.
10. Verify proper jack operation before you reinstall the bellows and return the product to service.
Item
Number
Name
A
45−966
O−ring
B
45−967
O−ring
C
390−2−134
Conical compression spring
D
715−1−301
Base plug
E
715−1−309
Valve plug
F
715−1−341
Poppet
H
715−100−325
Pump replacement assembly
J
926−20−153
Check valve
K
926−20−154
Seal
L
926−20−156
Seal
M
2025−700−26
Valve assembly
N
5050−70−50
P.C. valve
F
Fiig
gu
urre
e 1
13
3 –– D
De
esscce
en
ntt rra
atte
e a
ad
djju
ussttm
me
en
ntt
C
Co
on
nsstta
an
ntt ffllo
ow
w jja
acckk d
de
esscce
en
ntt rra
atte
e a
ad
djju
ussttm
me
en
ntt,, h
hyyd
drra
au
ulliicc b
ba
asse
e
T
To
oo
ollss rre
eq
qu
uiirre
ed
d::
•
(2) Bungee cords (or equivalent)
P
Prro
occe
ed
du
urre
e::
N
No
otte
e -- The jack descent rate is present from the factory to lower the foot end slightly faster than the head end. It is
recommended to have the foot end lower faster to avoid patient disorientation.
1. Raise the litter and rails to the highest position.
2. Apply the brakes.
3. Lift the base hood.
4. Separate the V
Ve
ellccrro
o® fasteners that secure the base hood to the base.
5. Using bungee cords, support the base hood.
6. The adjustable descent valve (N) is located on the base of the jack, and has a blue knob on the end (Figure 13). To
adjust, loosen the silver locking ring by turning it counter-clockwise. Turning the blue knob clockwise will increase the
rate of litter descent and turning it counter-clockwise will decrease the rate of litter descent.
7. Adjust the valves so the foot end jack descends slightly faster than the head end jack.
1900-009-002 Rev AA.6
23
EN
