Ditch Witch JT922 - Manual (Page 147)

Service - 146
JT922 Operator’s Manual
As Needed
CMW
Drilling Unit
Change Auto Lubricator TJC Pail
Check pipe auto lubricator TJC level and change
pail as needed.
To change pail
1. Remove wingnuts and bolts attaching base ring
(4) to pail cover (1).
2. Rotate base ring slightly to clear hooks on
cover and remove pail from cover.
3. Remove follower plate (3) from empty pail and
install into new pail. Press firmly on follower
plate until TJC comes up in center opening.
4. Remove base ring from empty pail and install onto new pail.
5. Install pail into place over pump dip tube. Use hooks on cover to support base ring.
6. Install bolts and wingnuts.
7. Remove cap (2) from discharge tee on pump. Operate pump until discharged TJC is free of air
pockets. Replace cap.
Change Hydraulic Filter (Anytime
System Opened)
Change hydraulic filter anytime system is opened
for repair. Change filter and refill with THF at
hydraulic oil fill.
NOTICE: Use only genuine Ditch Witch tool joint compound to maintain warranty. See “Recommended
Lubricants/Service Key” on page 130 for more information.
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 new filter. After 50 hours of normal
operation, replace with new filter (p/n 153-792).