13
10. Clean the oil fi ll plug and apply thread sealant to the threads.
Reinstall oil fi ll plug.
WARNING
In the following step, it will be necessary to
extend and retract the cylinder several times. Stay clear of
the cylinder and related components. Keep hands and fi ngers
away from pinch and crush points. Serious personal injury
could occur if these precautions are not observed. Refer to
Section 1.4 of this manual for additional hazard information.
11. With no load on the jack, extend and retract the cylinder
several times to check for proper operation, and to remove
any trapped air in the hydraulic system.
12. With the cylinder fully retracted and the pump motor o
ff
,
re-check oil level to be sure that it has not dropped. Add
additional oil if required. See Figure 11 for oil level diagram.
13. Reinstall the jack rear access cover. Refer to Section 7.1.
7.5 Air Line Filter/Regulator (See Figure 13)
Every 30 hours of operation:
1. Remove the jack rear access cover. Refer to Section 7.1.
2. Completely relieve any trapped pressure in the jack hydraulic
and pneumatic systems. Disconnect the air supply hose
from the air shut-o
ff
valve. Follow procedure in Section 7.2.
3. Check the fi lter bowl sight gauge for water. A manual drain is
located at the bottom of the fi lter/regulator bowl. If water is
present, drain it into a suitable container and dispose of it in
accordance with all applicable laws and regulations. Be sure
the drain is fully closed after draining is completed.
4. Remove fi lter bowl and inspect the air fi lter element (inside
fi lter bowl). Replace fi lter element if dirty.
NOTICE
Filter/regulator is manufactured by Norgren. Contact
Norgren for detailed maintenance instructions, fi lter elements
and replacement parts.
7.6 Air Line Lubricator (See Figure 13)
Every 30 hours of operation:
1. Remove the jack rear access cover. Refer to Section 7.1.
2. Check the sight gauge on the air line lubricant bowl. The
lubricant level should be at least 1/2 full.
NOTICE
If lubricant level is low, add additional lubricant as
described in steps 3 through 6. If lubricant level is OK, skip these
steps and go to step 7.
3. Completely relieve any trapped pressure in the jack hydraulic
and pneumatic systems. Disconnect the air supply hose
from the air shut-o
ff
valve. Follow procedure in Section 7.2.
WARNING
Be certain that jack pneumatic system is
completely depressurized and regulator air pressure gauge
indicates zero (0) psi/bar before removing lubricator fi ll plug.
Lubricant may spray from fi ll opening if fi ll plug is removed
while system is pressurized, even when air hose has been
disconnected and air shut-o
ff
valve is in the closed position.
Serious eye injury and/or skin penetration could result.
4. Remove the lubricator fi ll plug. Add additional lubricant as
required, until the level reaches the top of the lubricant bowl
sight gauge. DO NOT OVERFILL!
For ambient temperatures above 32°F [0°C], use a high
quality SAE 10 [ISO 32] air tool lubricant. For ambient
temperatures below 32°F [0°C], use only a glycol-based
anti-freeze air tool lubricant.
NOTICE
Lubricant level must not be higher then top of site
gauge. Do not operate jack with excess lubricant in lubricant
bowl. If lubricant bowl is overfi lled, jack air logic circuit may
become fl ooded with lubricant, preventing normal operation of
jack.
K
Front View
Figure 13, Routine Service and Maintenance Items - Air Filter/Regulator and Air Line Lubricator
Rear View
NOTICE:
NOTICE
CAUTION
WARNING
DANGER
Be sure air pressure gauge
(item J) indicates zero (0) psi/bar
before removing lubricator fi ll
plug (item F) or performing
maintenance activities.
I
J
E
M
A
H
B
L
F
G
A. Air Filter/Regulator
(with moisture trap)
B. Air Line Lubricator
C. Lubricant Bowl Sight Gauge
D. Drain Valves
E. Filter Bowl Sight Gauge
F. Lubricator Fill Plug
G. Oil Drip Window
H. Oil Drip Speed Control
I. Air Regulator Knob
J. Air Pressure Gauge
K. Air Inlet Hose
L. Air Inlet Connection
(1/2 inch NPT)
M. Air-shuto
ff
Valve
N. Filter Bowl
O. Lubricant Bowl
O
D
C
N
Key:
