Hyd-Mech H18 A - Page 45

3.9
10
Saw starts but will not
run after Start button has
been released.
10
On machines so equipped, the out-
of-stock or blade breakage limit
switch has been tripped.
10
Reload with stock or reset the blade.
Hold the hydraulic start button and
release the blade tension or open vises
far enough to deactivate the limit switch.
11
Saw starts but no
hydraulic functions.
11a.
If blade wheels run clockwise, wrong
phase order in power connection to
saw.
11a.
Stop immediately; reverse any two of
the three phase connections.
11b.
If pump is noisy cause may be low
hydraulic oil level.
11b.
Stop immediately, add hydraulic oil.
(See “Hydraulic Maintenance”)
11c. Pump-motor coupling has separated. 11c. Adjust accordingly.
IN MANUAL MODE
12
No individual function will
respond to its manual
control switch.
12a.
Observe pilot light(s) on relevant
valve. If pilot light fails to go on,
problem is electrical.
12a.
This requires the attention of a qualied
service person.
12b.
If pilot light related to inoperative
function does light, problem may
still be the coil . If problem remains
it may result from dirt in the valve
spool.
12b.
Disassembly of hydraulic valves should
be under taken only by qualied service
personnel or those knowledgeable with
hydraulic components.
13 Head will not descend.
13a.
Feed Rate Valve is fully closed -
pointer is set on “0” or close to “0” in/
min.
13a.
Turn Feed Rate Knob in a counter
clockwise to open valve.
13b. Feed Force Limit is set too low. 13b. Increase Feed Force Limit.
13c.
Check for physical interference
preventing the head from falling.
13c. Remove obstructions.
IN AUTOMATIC MODE
14 Auto cycle will not start.
14a. No job queue programmed to run. 14a.
Enter job numbers(s) and job data as
described in Section 2.
14b. Pieces required equals pieces cut. 14b. Clear pieces cut.