8
913F Powerig® Unit (HK1191)
Maintenance
SPARE PARTS
Always keep spare parts on hand commensurate with the
number of Powerigs in service. Parts that should be available
to the service technician are: Pump-to-Motor Coupling, Relay,
Transformer, Pilot Valve, and Motor Brushes. See
Spare Parts
and Accessories
for part numbers.
PREVENTIVE MAINTENANCE:
Perform the following steps monthly during normal use:
• Ensure that hydraulic and electrical fittings are secure.
•
Inspect hoses for signs of damage. Replace hoses if abrasion
is deeper than the surface texture.
•
Inspect during operation to detect any abnormal heating,
vibration or leakage.
• Inspect hydraulic fluid. If contamination (particles, water,
sludge, etc.) is detected, clean the reservoir and replace fluid.
Replace return line filter when changing hydraulic oil.
• Clean exterior surfaces.
DIRECTIONAL VALVE OVERHAUL
If overhaul of the directional valve is necessary, a valve repair
kit that has the spools, cartridges & poppets is 129437, is
available for purchase, and should be kept on hand. To rebuild
valve, follow instructions included with kit.
PUMP OVERHAUL:
If pump requires overhaul return it, or the complete unit, to
the nearest repair facility shown on the inside back cover.
ENGINE MAINTENANCE:
•
Check the oil in the hydraulic unit every 5 operating hours,
and before each use.
• Change the crankcase oil after the first 20 hours of operation.
Thereafter, change it after every 100 hours of operation. If
the power source is operated in extremely dusty or dirty
environment, change the oil every 50 hours of operation. SEE
WARNING ABOVE. Unscrew the oil drain plug; tip the engine
toward the oil drain hole and drain completely. Replace the
oil drain plug and refill.
• The air-cooled engine operates most efficiently when the
cooling fins are kept clean. Remove all dust and dirt from
the cylinder fins and the underside of the housing, as
required.
•
A dirty or clogged air cleaner results in noticeable loss of
engine power. Clean the reusable-type of air cleaner every
10 operating hours (more frequently if the unit is operating
in dusty or dirty environment). To clean, remove the air
cleaner and dip it in gasoline.
•
Remove and inspect the spark plug at each oil change. Keep
electrodes clean and free of carbon. Adjust electrode gap to
.030 inch. If electrodes are pitted or burned, or the ceramic
insulator is cracked, replace the spark plug. Before installing
a spark plug, coat its threads
lightly with graphite grease.
Notes:
1. Service more frequently
when used in dusty areas.
2. These items should be
serviced by Honda engine
service dealer, unless you
have the proper tools
and are mechanically
proficient. Refer to the
Honda shop manual for
service procedures.
3. Engine oil: use 5W30 (0°F -
100°F ambient) or 10W-30
(20°F - 120°F ambient).
4. Use Huck Return Oil Filter.
5. Hydraulic fluid: use 32AW
(0°F - 70°F ambient), 46AW
(30°F - 120°F ambient), or
ATF (30°F - 90°F ambient).
6. Use Huck Breather Vent
Filter.
7. If poppets show wear, use
Huck Directional Valve Kit
to replace poppets, seats &
seals.
8. If valve stem shows wear,
replace with Huck Valve
Stem.
WARNING: Before changing the oil,
DISCONNECT THE WIRE FROM THE SPARK
PLUG. Failure to do so may result in severe
personal injury and damage to the tool.
SERVICE PERIOD
ACTION
BEFORE
EACH
USE
AFTER
FIRST 20
HOURS
EVERY
50
HOURS
EVERY
100
HOURS
EVERY
200
HOURS
Engine Oil
Check
•
Change
• (
3
)
• (
1
) (
3
)
Engine Air Cleaner
Check
•
•
Clean
• (
1
)
Replace
•
Spark Plug
Check-
Adjust
•
Replace
•
Engine Cooling Fins, Underside
of Housing
Clean
•
Combustion Chamber
Clean
•
Engine Run Speed
Check-
Adjust
•(
2
)
Engine Valve Clearance
Check-
Adjust
•(
2
)
Fuel Tank and Fuel Filter
Check
• (
2
)
Hydraulic Hose Fittings
Check-Clean
•
Electrical Connections
Check
•
Hydraulic Fluid Level, Fill Cap
Tight
Check
•
Verify Pull & Return Pressure,
Tighten Adjustment Screw Jam
Nuts
Check
•
Tighten Cover Plate Screws
Check
•
Tighten Screws on Engine
Check
•
Hydraulic Fluid Filter
Change
• (
1
) (
4
)
Change Hydraulic Fluid, Clean
Tank
Change
• (
1
) (
5
)
Breather Vent Filter
Change
• (
1
) (
6
)
Directional Valve Seals, Poppets
& Seats
Check
• (
7
)
External Relief Valve Stem
Check
• (
8
)
