SK5TR
Attachment Operator’s Manual
Publication number: 054-096; page 5 of 9
Service
Each Use
Check Bit Rotation
Bits must rotate freely in bit holders. Clean chain and
check bits for free rotation after each use. If any bit does
not rotate, it will quickly wear unevenly. If using rock
chain bits, replace bit when tungsten cap or insert is worn
or adapter can be damaged.
10-Hour
Check Hydraulic Hoses and Fittings
Check hydraulic hoses for leaks every 10 hours.
Check and Adjust Digging Chain
Check digging chain
tension every 10
hours. Clearance
between chain and
boom (4) should be
approximately 1" (25
mm).
To adjust chain with
roller boom:
1.
Lower boom to
ground and stop engine.
2.
Loosen four trencher boom clamp bolts (3), if
equipped.
3.
Loosen jam nut (2) and turn adjusting screw (1)
clockwise to increase and counterclockwise to
decrease chain tension.
4.
Tighten jam nut.
5.
Tighten trencher boom clamp bolts to 78 ft•lb
(106 N•m).
To adjust chain with
sprocket boom:
1.
Lower boom to
ground and stop
engine.
2.
Adjust chain
tension by
tightening or loosening adjustment screw (2) and jam
nut (1). Digging chain tension is correct when 1-1.5"
(25-40 mm) of slide and stop is exposed (3).
3.
Tighten jam nut.
To help avoid injury:
Unless otherwise noted, all
service should be performed with the engine off.
Pressurized fluid or air
could pierce skin and cause severe
injury. Stay away.
To help avoid injury:
•
Use a piece of cardboard or wood, rather than
hands, to search for leaks.
•
Wear protective clothing, including gloves and eye
protection.
•
Before using system, check that all connections
are tight and all lines are undamaged.
•
If you are injured, seek immediate medical
attention from a doctor familiar with this type of
injury.
Hot parts may cause
burns. Do not touch until cool or
wear gloves.
To help avoid injury:
Wear gloves when connecting
and disconnecting hydraulic hoses and wait until unit
has cooled before touching hydraulic components.
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