Ditch Witch AT Air Hammer - Manual (Page 6)

CMW
®
All Terrain Air Hammer
Attachment Operator’s Manual
Publication number: ID0273478; page 6 of 11
Monitor Cuttings
Monitor spoils leaving the bore at the entry pit. If cuttings
are not clearing the hole, a different drill fluid mixture
might be needed to seal the bore.
Set Cruise Control
Once bore is established, set cruise control. (See drilling
unit operator’s manual for instructions.)
Add Pipe
Drill string contains pressurized air and water. Before
breaking joints to add pipe, stop drilling fluid flow and wait
for the reading on the drill fluid pressure gauge to drop.
Storage
If the air hammer will not be used for 48 hours after
drilling, coat the inside of the hammer with oil.
To add oil, choose one of the methods below:
• If the hammer is connected to the drill string, turn off
drilling fluid supply to the drilling unit. Operate
hammer to push remaining fluid out of hammer.
Break joint and pour 1 pint (0.5 L) of oil into the last
drill pipe. Operate hammer to blow oil through the
hammer components.
• If the hammer is not connected to the drill string,
remove bit and pour oil into the hammer housing.
Rotate hammer housing so that oil coats the inside.
Store air hammer in a clean, dry place. Cover air hammer
to keep it clean. For long-term storage, place tool
vertically.
Service
Each Use
Inspect Hydrocyclone
Inspect hydrocyclone after each bore to ensure that
backhead ports are passing air.
10-Hour
Grease Rockmaster Beacon Housing
Install zerk and pump multi-purpose grease into lube
point at the beginning of each bore and every 10 hours of
operation.
Every 15, 000 ft (4575 m)
Check Air Hammer
Disassemble air hammer and inspect inner components
every 15, 000 ft (4575 m) of use. Replace components as
needed and reassemble tool.
Pressurized fluid or air could
pierce skin and cause injury or death.
Stay away.