Diamond Products HCH50 - Manual (Page 55)

Operating instructions Servicing
HCH5011 / 001 8-7
8.6 Troubleshooting
Proceed systematically when looking for the causes of a fault. Refer to the
operating instructions of the drive assembly you are using when doing this.
The following table will help you to narrow down and rectify the source of
the fault.
Fault Possible cause Solution
Chain saw HCH5011 cannot be
started Drive assembly is switched off Switch on drive assembly
Emergency stop on drive assembly
has been activated Release emergency stop on the
drive assembly
Chain tension too high Tension diamond chain correctly
see “Chapter 8” 8.2,
 8-3
Reversing wheel bearing rusted or
reversing wheel worn Free-up bearing with chain spray or
replace reversing wheel
Diamond chain has excessive
contact with building structure Withdraw from cut and insert into
building structure with chain running
Drive wheel incorrectly mounted Check drive wheel
Diamond chain broken Loose metal or stone in building
structure Remove metal or stones or position
cut at another point
Diamond chain incorrectly
assembled Assemble diamond chain correctly
see “Chapter 3” 3.3.3,
 3-4
Diamond chain worn Replace diamond chain
see “Chapter 3” 3.3.3,
 3-4
Chain speed is too high Drive assembly power is too high.
Use a pressure relief valve (140 bar)
or a flow divider (pressure limiter 40
l/min at 140 bar).
Diamond chain seriously worn on
cutting segment Highly reinforced building structure Cannot be removed
Chain speed too low Use hydraulic unit at
min. 35 l/min
Insufficient water Min. pressure 2bar
Diamond chain vibrates heavily Diamond chain inadequately
tensioned Tension diamond chain correctly
see “Chapter 8” 8.2,
 8-3
Diamond chain sticks in cut Block being cut out moves Insert stable wood or steel shims in
the cut so that the block no longer
moves
Incorrect cutting sequence Observe cutting sequence
see “Chapter 6” 6.3.4,
 6-6
Diamond chain can no longer be
tensioned, since the chain tensioner
is at its limit Diamond chain has stretched
through normal wear Lift bar from tensioning cam A and
tension using tensioning cam B
see “Chapter 8” 8.2,
 8-3