✽
Lubricate with gear oil.
(see Section 7.9 for
detailed instructions)
Key:
A. Hydraulic Cylinder
B. Lock Nut
C. Drive Chain
D. Roller
E 1. Chain Tensioner
7.
Remove any loose dirt or debris from the cylinder threads
and inspect the threads for obvious wear or damage. If the
old lubricant has dried-up, clean the threads with a brush
and some solvent before applying new lubricant.
8.
Using an oil bottle with spout, apply two vertical streams
of SAE 80w-90 gear oil [ISO 150] on the exposed cylinder
threads, from top to bottom of cylinder. See Figure 19.
Apply two
streams of
gear oil to threads.
(see Section 7.9 for
detailed instructions)
Figure 19, Cylinder Thread Lubrication
A
E 2. Tensioner Pivot Shaft
F. Chain Drive Plate
G. Drive Sprocket
H. Proximity Sensors
I.
Lock Nut Sprocket
Figure 18, Lock Nut Chain Drive Assembly
✽
B
C
I
9.
Remove the lifting sling and lower the jack front access
cover to its normal position, so it is supported by the chain
drive plate. The front access cover and protective bellows
should now completely cover the cylinder threads and chain
drive mechanism.
WARNING Be certain that jack front access cover is
installed and fully lowered before starting the jack. Never
operate the jack with the front access cover removed or
raised, either during lubrication and maintenance procedures
or when the jack is in use. Failure to observe this precaution
may result in persons becoming entangled in the moving
parts of the chain drive mechanism. Serious personal injury
could result.
10. Reconnect the air supply hose and move the air-shutoff
valve to the OPEN position.
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 1.3 of this manual for additional hazard
information.
11. With no load on the jack, fully extend and retract the cylinder
several times to distribute the gear oil on the cylinder
threads, and on the chain and drive components. Verify
proper operation.
12. Reinstall the jack rear access cover. Refer to Section 7.1.
15
✽
D
E2
E1
E1
E2
D
✽
F
G
H