Jt922 operator’s manual – Ditch Witch JT922 User Manual
Page 135

Service - 134
JT922 Operator’s
Manual
Startup/10 Hour
CMW
Check Hydraulic Fluid Level
Check hydraulic fluid level before startup and every
10 hours of operation. Maintain fluid level at
halfway point on sight glass (2) when engine is off
and fluid is cool. Refill with THF at hydraulic fluid fill
(1) as necessary.
Check Pipe Auto Lubricator Spray
Nozzle (Optional)
Check pipe auto lubricator spray nozzle before
startup and every 10 hours of operation. Ensure
that nozzle is free of obstructions and operates
properly. Clean as needed.
To clean
1.
Rotate handle to the upward, or cleanout, position (A).
2.
Operate pump until obstruction is flushed.
3.
Rotate handle to the downward, or spray, position (B).
4.
Clean nozzle guard. If necessary, pull handle/nozzle insert out of housing to clean with fine wire or
solvent.
IMPORTANT: If hydraulic system must be
opened for repair, install new filter (p/n 153-791)
for first 50 hours of operation. If this filter
becomes plugged in fewer than 20 hours,
replace with clean filter. After 50 hours of normal
operation, replace with clean filter (p/n 153-792).
NOTICE: Ditch Witch tool joint compound is
specially formulated to work with Ditch Witch
pipe lubrication system. Use of other tool joint
compounds will clog system. See
“Recommended Lubricants/Service Key” on
page 130 for more information.