DR Power Towable Backhoe - Manual (Page 21)

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Changing the Hydraulic Fluid and Filter
Changing the Hydraulic Fluid Filter
Tools and Supplies needed:
• 9/16" Wrench
• Filter Wrench
•
Clean Waste Fluid Container (10 Gallon capacity)
•
Hydraulic Fluid (see spec sheet on page 9)
• New Hydraulic Fluid Filter
• Safety Glasses
•
Clean Rags
NOTE: If the Hydraulic Fluid needs to be changed also, drain the Fluid first (see
“Changing the Hydraulic Fluid”).
1. Place a Waste Fluid Container under Filter and Connections.
2. Set the Front Stabilizers to their highest position.
3. Lower the Tongue end of the Backhoe some to help reduce Fluid loss when
changing the Filter.
NOTE: Be careful when lowering the tongue end of the Backhoe that hydraulic fluid
does not escape from the Hydraulic Fluid Fill Cap.
4. Use a 9/16" wrench to remove the four Bolts, Lock Washers and Washers
from the Foot Plate and remove the Foot Plate (Figure 33).
5. Apply a thin coat of fresh hydraulic fluid to the Rubber Seal of the new
Hydraulic Fluid Filter.
NOTE: When the Filter is removed, fluid will continue to flow from the hoses. Install
the new filter as soon as the old one is removed.
6. Remove the existing Hydraulic Fluid Filter with the Filter Wrench and
properly dispose of it (Figure 34).
7. Screw the new Filter onto the Filter Head. Once the filter seal makes contact
with the filter head, turn it an additional ¾ turn. Hand-tighten only.
8. Remove the Hydraulic Tank Fill Cap/Dipstick and fill the Hydraulic Tank with
the recommended type of hydraulic fluid until the level is at the middle (2-
3/8" up from the bottom) of the Steel Rod. Do not deviate more than 1/2"
up or down from that point (Figure 35).
TIP: Check the Fluid level by removing the Hydraulic Fluid Filler Cap and wiping
the steel rod of the Dipstick with a clean Rag or Paper Towel. Reinsert and
tighten the Cap to the proper position (1-3/4" from the bottom of the Cap to the
top of the Tank). Remove the Cap and lay the Steel Rod onto a dry Paper Towel
or Rag and read the level by the wet mark that is transferred from the Steel Rod
to the Rag.
9. Replace the Foot Plate and Hardware.
Fluid Half
Way on the
Steel Rod
Figure 35
2-3/8"
1-3/4"
Hydraulic
Fluid Fill Cap
Figure 34
Hydraulic
Fluid Filter
Remove
Install
Never run the backhoe unless the hydraulic fluid tank is at the recommended
level.
Foot
Plate
Figure 33
Bolt, Lock washer
and Washer
(4 places)