Dando TERRIER Mk 1, Руководство по эксплуатации и техническому обслуживанию, Страница: 42 / 276

3.14.2 OPERATING INSTRUCTIONS
Before attempting to track the machine please ensure that Mast Parking
Support (Item 10 Drg PST2250/F/2/01) is in position and all locking pins are
in place.
Ensure Hydraulic Flow Control Valve is fully open (Item 26 Drg TAV.11-
96614710) and PTO Valve in ‘On’ position (Item 33 Drg TAV.11 –
96614710).
3.14.3 ROTARY DRILLING
To set the rig up ready for drilling, slot the two front legs into the base of the
mast & secure with the locking pins.
Remove the mast locking pin and Mast Parking Support (Item 10 Drg
PST2250/F/2/01) raise the mast (Control Lever B, Fig 3.2) until base of mast
is supported by its weight, then remove the pivot frame slide locking pins.
Now adjust alignment to vertical position using mast raising lever.
Level the machine by adjusting the front leg screws (when drilling over soft
ground please ensure that the leg screws are supported).
Raise the carriage to the top of its travel by pulling the mast cylinder control
lever (Control Lever B, Fig 3.2).
Attach appropriate drive adaptor to the swivel housing (BW Rod Pin or 1.1/8”
/ 1.5/8” Hex Pin subject to drilling method) and fit selected drilling tools.
For drilling method requiring air or fluid circulation attach appropriate supply
hose to the ball valve located on side of the swivel housing
– control tap in
closed position.
Ensuring that the area is clear you can start to drill. Open swivel control tap if
fluid/air circulation required. To rotate the drilling tools, pull on the weight
control lever (Control Lever A, Fig 3.2). Speed of rotation can be
increased/decreased by adjusting engine throttle control lever 3. Lower the
tools until in contact with the ground by pushing forward the mast cylinder
control (Control Lever B, Fig 3.2). Feed is controlled by Variable Speed Feed
Control (Control Lever C, Fig 3.2) which can be increased to apply weight to
the cutting tool or decreased to hold back the weight of the drill string if
penetrating too fast.
When pushing the mast cylinder control forward the effect will be to lift the
mast assembly off the ground thereby applying the full weight of the rig on to
the drilling tools - penetration rate can be monitored by watching the inner
pivot frame slide down inside its housing (Item 8 Drg PST2000/F/2/00).
Continue until rotary head reaches the bottom of its travel on the mast, stop
rotation by moving control lever A to neutral position then add or remove drill
rods/ augers as required by using mast cylinder control (Control Lever B, Fig
3.2).