Hyd-Mech V18APC - Page 53

3.9
2 Blade comes o󰀨 wheels. 2a. Blade tension is insu󰀩cient. 2a.
Blade tension is determined by system
pressure. Check. (Extended head, check if
blade tension gauge reads 650 psi).
2b. Blade tracking out of adjustment. 2b. Have tracking set to blade specication.
3 Blade stalls while cutting. 3a. Blade tension is insu󰀩cient. 3a.
Blade tension is determined by system
pressure. Check. (Extended head, check if
blade tension gauge reads 650 psi).
3b. Excessive feed force. 3b.
Reduce the Feed Force pressure and
attempt cut.
4
Blade vibrates
excessively.
4a. Blade tension is insu󰀩cient. 4a.
Blade tension is determined by system
pressure. Check. (Extended head, check if
blade tension gauge reads 650 psi).
4b. Blade speed excessive. 4b.
Reduce the blade speed to eliminate
vibration.
4c. Guide arms too far apart. 4c.
Adjust the distance between the guide arms
(Min.)
5
Excessive blade
breakage.
5a. Excessive feed rate. 5a.
Reduce the feed rate and check system
pressure.
5b. Excessive blade tension. 5b.
Blade tension is determined by system
pressure. Check.
6 Tooth strippage. 6a. Blade pitch is too ne. 6a.
Select a blade with a coarser pitch for
cutting.
6b. Blade brush is not cleaning. 6b. Replace or adjust the blade brush.
6c. Excessive feed rate. 6c.
Reduce the feed rate. Check calculations
for rate.
6d. Excessive feed force. 6d.
Reduce the feed force pressure maximum
setting.
7 No coolant ow. 7a. Coolant reservoir low or empty. 7a. A coolant to the reservoir. Check for leaks.
7b. Coolant line is blocked. 7b.
Use compressed air to blow obstruction out
of the line.
7c. Coolant pump not operating. 7c.
Check the pump output and replace if
necessary.
8 Head will not advance. 8a. The feed rate valve is closed. 8a.
Pointer is at “0”. Turn the Feed Rate Knob
counter clockwise to open.
8b. The Feed Force limit is too low. 8b.
Increase the Feed Force limit - to at least
100 PSI.
8c. Pointer out of adjustment. 8c.
Loosen pointer lock nut. Turn the knob
clockwise to “0”. Tighten lock nut.
9
Head advances with feed
at “0”.
9a. Pointer stopped but valve open. 9a.
Loosen pointer lock nut. Turn the knob
clockwise to “9”. Tighten lock nut.
9b. Fast Approach is open. Blocked lever. 9b.
Adjust Fast Approach lever. Phone factory
for details.