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Instructions
12. Check displacement rod (30) for excessive wear or
damage. If displacement rod (30) is damaged,
replace the pump.
13. Using a 5 mm socket wrench remove the 3 screws
(3) from the bottom cover (26) (Fig. 8).
29
Fig. 8
14. Separate the bottom cover (26) from the flange (29)
(Fig. 8).
If you are replacing the o-rings and seals installed in
the flange, bottom cover, and air piston continue
instructions with the Throat and Piston Seal
Replacement Kit 24H853 instructions beginning on
page 9 and then Step 1, page 6 of the Reassembly
instructions.
Pump Reassembly
NOTE: The following instructions describe the proce-
dure to follow to reassemble a completely disassembled
LD oil pump. Depending on the repair/maintenance pro-
cedure you are performing on the pump, it may not be
entirely disassembled. See the specific section(s)
related to your repair/replacement kit.
For all reassembly procedures:
•
Clean all the parts carefully in a compatible solvent,
and inspect for wear or damage. Use all the repair
kit parts during reassembly, and replace other parts
as necessary.
•
Check the polished surfaces for scratches or wear.
•
Lubricate all parts with a light, water-resistant
grease.
1. Install new o-rings and seals in bottom cover (26)
and flange (29) as described in the Throat and Pis-
ton Seal Replacement Kit 24H853, page 9. Be sure
to apply a thin coat of water-resistant grease to all
o-rings and seals.
6
2. Apply a thin coat of grease round the top of the dis-
placement rod (30) and install the rod assembly in
the flange assembly as shown in Fig. 9.
26
26
3
Fig. 9
3. Install bottom cover (26) over displacement rod
(30). Align pilot valve (20) installed in bottom cover
with opening (a) in flange (29) as shown in Fig. 10.
Compress the bottom cover (26) and flange (29)
together.
26
29
Fig. 10
4. Install 3 screws (3) (Fig. 11). Tighten with a 5mm
socket wrench and torque to 60-70 in lbs (6.8 – 7.9
N.m).
Fig. 11
29
20
Pin Hole
33
a
3
3A1494D
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