Echo 72928 Owners Manual v.7 - Manual (Page 17)

9 INCH CHIPPER 13
CONTROLS AND OPERATION
5. As air is purged from the unit, the oil level in the res-
ervoir will drop and bubbles may appear in the fluid.
Refill the reservoir as necessary.
6. Run the unit in both directions for several minutes until
any remaining air is purged from the unit. Refill the
reservoir as necessary.
7. Check to make sure the feed roller stops when the
control arm is in the neutral position. Adjust the cable
clevis or anchor if the feed roller doesn't stop.
8. Shut down the engine, check for and correct any
fluid leaks, and check the reservoir level. Add fluid
if necessary. The hydrostatic pump is now ready for
operation.
Warning
Do not start engine unless pump is in neutral or detent
position on the cable.
Figure 3.3, Hydrostatic pump components
3.4 ConTrol arm oPeraTion
1. Start the chipper engine. Bring the chipper up to op-
erating speed.
2. Engage the hydraulic feed by moving the control arm
as shown in Figure 3.4. In the forward direction, the
feed rate increases as the arm is moved.
3. Feed the branch (up to nine inches in diameter).
4. If the chipper jams, reverse the feed by moving the
control arm in the reverse direction. Remove the branch
and rotate it before inserting it into the chute again.
Feed Control
Lever
Forward Reverse Neutral
Figure 3.4, Control arm operation
3.5 SafeTY bar ("S" moDelS)
3.5.1 reSeTTing THe CHiPPer
The safety bar (See Figure 3.5) located along the chute
extension tray will stop the chipper when pushed in. The
reset button for this bar sits on top of the chipper chute.
When the safety bar has been activated, a red light will
come on signaling that the operator reset button will need
to be pushed before the feed roller will function. If false
trips occur, the reset button can be held in to override the
system. Upon start-up, the safety bar light will be on and
will need to be reset before the feed roller will operate.
3.5.2 loCking in Travel PoSiTion
The safety bar will lock into travel position. Place the
extension tray in an upright position. Pushing the safety bar
down will lock the bar. To unlock, lower the extension tray
and push in on the safety bar. This will release the flange
and allow the safety bar to move freely.
Figure 3.5, Safety bar components ("S" models)
3.3 HYDrauliC feeD oPeraTion (ConT).