MTD 500 Series Operator's Manual page 13

For Parts Call 606-678-9623 or 606-561-4983 For Parts Call 606-678-9623 or 606-561-4983
Figure 5-
NOTE: Always dispose of used hydraulic fluid and engine
oil at approved recycling centers only.
• Contaminants in fluid may damage the hydraulic
components. Flushing the reservoir tank and hoses
with kerosene whenever service is performed on
the tank, hydraulic pump or valve is recommended.
Contact an authorized service dealer.
Hydraulic Filter
• Change the hydraulic filter every 50 hours of opera-
tion. Use only a 10 micron hydraulic filter. Order part
number 723-0405.
Beam and Splitting Wedge
• Lubricate both sides of the beam (where it comes into
contact with the splitting wedge), before each use,
with engine oil. The wedge plate on the log splitter is
designed so the gibs on the side of the wedge plate
can be removed and rotated and/or turned over for
even wear.
• Make certain to readjust the adjustment bolts so
wedge moves freely, but no excess space exists
between the wedge plate and the beam.
Hose Clamps
• Check, before each use, if hose clamps on the suction
hose (attached to the side of the pump) are tight.
Check the hose clamps on the return hose at least
once a season.
Engine
Refer to the separate engine manual for all maintenance
instructions.
Flexible Pump Coupler
The flexible pump coupler is a nylon "spider" insert,
located between the pump and the engine shaft. Over
time, the coupler will harden and deteriorate.
Replace the coupler if you detect vibration or noise
coming from the area between the engine and the
pump. If the coupler fails completely, you will experience
a loss of power.
IMPORTANT: Never hit the engine shaft in any manner,
as a blow will cause permanent damage to the engine.
1. Remove three nuts that secure the pump to the
coupling shield. Two nuts are at the bottom corners
and one is in the top center. See Figure 5-3.
2. Remove the pump.
3. Rotate the engine by slowly pulling starter handle
until engine coupling half set screw is visible. Loosen
set screw using allen wrench and slide coupling half
off engine shaft.
4. Loosen set screw on pump coupling half and remove
coupling half.
5. Slide new engine coupling half onto the engine
shaft until the end of the shaft is flush with the inner
portion of the coupling half. (There must be space
between the end of the engine support bracket and
coupling half). Tighten set screw.
6. Install pump coupling half and key on pump shaft.
Rotate coupling half until set screw faces opening in
shield. Do not tighten set screw.
7. Install nylon "spider" onto engine coupling half.
8. Align pump coupling half with nylon "spider" by
rotating engine using starter handle. Slide coupling
half into place while guiding three mounting bolts
through holes in pump support bracket.
9. Secure with nuts removed earlier.
10. Set.010" to.060" clearance/gap between the nylon
"spider" and the engine coupling half by sliding
a feeler gauge or matchbook cover between the
nylon "spider" and the engine coupling half and
moving pump coupling half as needed. Secure pump
coupling half with set screw. See Figure 5-3.
13
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Set Screw
Side View-Coupler
.0600
.0100
Figure 5-3
5
Maintaining
Your Log
Splitter
WARNING
NOTE: Always dispose
of used hydraulic
fluid and engine oil at
approved recycling
centers only.
IMPORTANT
Never hit the engine
shaft in any manner,
as a blow will cause
permanent damage to
the engine.