Malfunctions And Their Repair - SaMASZ PG 150 Operator's Manual

3.10. Malfunctions and their repair

Tab. 4. Defects, causes and their repair
No. Defect
Trimmer will
1.
not cut
Trimmer will
2.
not cut
Too slow
3. motion of
cutting bar
Loud
4. operation
5. Oil leak
Any works related to replacement of worn or damaged parts should be done only after the
machine has been switched off, and having previously learned the contents herein. After the engine
has been turned off and the ignition key removed, the vehicle should be secured against any
accidental movement.
Set the machine in a standstill position according to the instructions herein. When conducting
repair works or replacing worn or damaged parts wear protective gloves, protective footwear as
well as protective clothing without any loose elements. When operating with the machine lifted up,
protect it properly with supports and when replacing parts with sharp edges, use personal protective
equipment and corresponding tools. Once works related to replacement of defective parts are
completed, mount back all elements of guards and safety devices.
Operator's manual
Reason
Damaged cutting bars
Too low PTO rpm
Worn guide and pressure blocks
Worn, damaged hydraulic engine
Protracted or sheared cylinder
mounting pin
Not tight hydraulics
Improperly adjusted or
damaged oil distributor
Improperly connected hydraulic
hoses
Damaged or blunt cutting bars
Too low pressure of upper cutting
bar on lower cutting bar
Low rpm
at tractor's PTO
Overtightened set screws
Worn skid
Worn guide and pressure blocks
No lubrication
Hydraulic system leaking
Worn skid
Worn guide and pressure blocks
Plays on cylinder mounting
pins
Loosened bolt connections
Improperly bolted connecting
nozzles
Worn, damaged sealants,
fittings
Not tight hydraulic cylinder
SCISSOR TRIMMER
Order a recovery or replace
Switch rpm to 300-350, increase engine's
Replace guide and pressure blocks
Recover hydraulic cylinder or replace
Seal or tighten connectors
Order a recovery or replace
Tighten set screws on upper cutting
Increase tractor's engine rotary speed
Bolt connecting nozzles
Replace sealants, fittings
- 14 -
PG-150, PG-200
PG-150L, PG-200L
Repair
rotary speed.
Install or replace
Adjust or replace
Swap connections
bar
Loosen set screws
Replace for a new
Replace for a new
Lubricate
Seal up
Replace for a new
Replace for a new
Replace for a new
Tighten the bolts
Recover
Replace