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Maintenance And Lubrication - LITTLE BEAVER PS-18H Operator's Manual

Hydraulic power unit

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Engines are shipped without oil or gasoline. Refer to MANUFACTURER'S INSTRUCTIONS for proper
procedures and recommended fluids.
SHUT OFF ENGINE to adjust, service, clean or refuel the machine.
HYDRAULIC RESERVOIR:
The hydraulic reservoir should be filled to the "FULL" mark on the dipstick with recommended
hydraulic oil.
Hydraulic Oil Recommendation: Most premium grade, mineral-oil based hydraulic fluids
with an anti-foam inhibitor is suitable.
ISO VG 46 fluids are recommended for normal temperature operation while ISO VG 32
fluids can be used in colder climates and ISO VG 68 can be used in warmer climates.
The hydraulic oil and return line oil filter should be changed after the first 15 hours of use and once
every 500 hours or 3 months thereafter.
IMPORTANT: Never attempt to start engine with a low hydraulic oil level. A low hydraulic oil level
NOTE: Both engine oil and hydraulic oil levels should be checked prior to each day's use.
WARNING: NEVER use hands to search for leaks, instead, use a piece of cardboard or wood.
Escaping hydraulic fluid under pressure can have sufficient force to penetrate the skin, causing
serious injury. Before disconnecting lines, be sure to relieve pressure. Before applying pressure, be
sure connections are tight and fittings and hoses are not damaged.
If injured by escaping fluid, see a doctor at once. Serious infection and/or reaction can develop if
proper medical treatment is not administered immediately.
HYDRAULIC OIL LEAKAGE: If any hydraulic oil leakage is encountered, check and properly
tighten the associated fitting. (Refer to torque chart for proper assembly torque). If the leakage
persists, it may be necessary to replace the associated fitting or hose assembly.
IMPORTANT: All nuts, fasteners, and fittings must be kept tightened. Refer to Torque Chart for
proper assembly torque.
WIRING INFORMATION:
The cooling fan and hour meter are connected to the Load (LO)wire from the engine wiring
harness. See the engine owner's manual for specific information.

MAINTENANCE AND LUBRICATION

will cause excessive heat and premature component failures.
Page O-6
0107

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This manual is also suitable for:

Ps-19dPs-24hPs-20ha