Fairport FPR60H Operation Manual - page 13
13
OPERATION
2.5 Operation
1. Turn the choke lever to open the choke. Run the engine for 5 minutes at low/idle speed
to warm the engine.
2. Move the throttle level quickly to the
“FULL OPEN” position. DO NOT move the throttle
level slowly as this may cause damage to the clutch or spring.
Make sure that the throttle lever is moved to the FULL OPEN position.
Operating the rammer at less than full speeds can result in damage to the
clutch springs or foot.
3. After starting the tamping action, adjusts the jumping motion to suit the particular soil
condition by lightly controlling the throttle lever. When the engine speed falls between
the set values shown on the engine, your work can be carried out at the best efficiency.
Increasing the engine speed unnecessarily does not cause the compaction force to
increase. On the contrary, a resultant resonance causes the compaction force to
decrease, damaging the machine.
4. Under cold weather, the oil in the machine may be viscous. The resistance at
reciprocating part is greater causing the tamping rammer to perform a somewhat
irregular movement. Therefore, it is recommended to perform the warm-up run by
moving the throttle lever repeatedly between ON and OFF positions, before starting
the work.
5. The contact surface of the foot is lined with a heat-treated metal sheet for extra
strength wear resistance. However, for compacting cobblestones, cover with backfill
material so that the foot hits the cobbles uniformly.
6. The tamping rammer has been designed to advance while jumping. For quicker
advance, operate the machine by pushing its handle down slightly so that flat surface
of the foot at
it’s rear-end contacts the ground.
7. To stop the tamping action, move throttle lever quickly from the FULL OPEN to IDLE
position.
2.6 Stopping
2.6.1 Normal shutdown
1. With the throttle lever closed from ON to OFF, run the engine for 3-5 minutes at low
speed, and after temperature is lowered, turn the switch to the
“OFF” position.
2. Close the fuel shut-off valve by moving the fuel cock lever to the CLOSED position.
2.6.2 Emergency shutdown
Move the throttle lever quickly to the IDLE position, and turn the engine ON/OFF switch to
the OFF position.
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CAUTION