11
④
A new discharge valve is provided with a mounting foot (hatched portion). Insert the
discharge valve from under the reversing bar and pull up this foot to mount the discharge
valve. After mounting the discharge valve correctly, cut off this foot portion with a
cutter.
[NOTE] Take care not to drop the cut foot into the piston.
(6) Replacing the Air supply valve rubber
The air supply valve is put into the valve stem. Cut off the broken air supply valve with a
cutter and mount a new air supply valve. (Fig.16)
[NOTE] At replacement, be sure to replace both left and right air supply valves (2 valves).
(7) Precautions on assembling the Trip rod
When locking the trip rod with a nut, lock it at a position where
the top surface of the locking nut and the screw end face of the
trip rod are aligned evenly. (Fig.17)
( If this position deviates from the correct position, an accurate
reversing point cannot be obtained, resulting in a failure.)
(8) Lubricant to be used for assembly
Apply high-quality molybdenum type grease enough between the pin, spring retainer, or
reversing lever, and the support before starting assembly. (NLGI #1)
For the other parts, apply the lubricant at assembly according to the general machine
assembling method.
Fig.17
[NOTE]
To complete the re-assembly of the trip rod correctly, check the operation of the
internal reversing structure when the reversing valve has been assembled.
(Status shown in Fig. 13)
①
The reversing valve is put forcibly into switching operation by pulling up the
trip rod right above and pushing down the reversing valve body.
②
After repeating this forced switching operation several times, check by
swinging the air supply valves if the air supply valves and the discharge
valves on the left and right sides are pushed by equal force, and if the locking
wire is not stretched.
③
If unbalanced force is felt between the left and right sides, readjust the air
supply valve and anti-loosing part to avoid causing trouble such as air leak.
