um Unverferth 2750, Operator'S Manual And Parts Catalog, Page: 36 / 112

2-8
Service
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POWER PAK
For general maintenance and servicing of power
pak unit.
NOTE: For maintenace of engine and warranty
information, refer to Operator’s Manual provided
with engine. Following are phone numbers and
Websites for your convenience:
US
www.honda-engines.com
Phone 800-426-7701
Canada
www.honda.ca
Phone 888-9HONDA9
The hydraulic fl uid should be replaced after ev-
ery 100 hours of engine run time. Be sure to
fi lter the fl uid when fi lling tank, especially from a
bulk container. Any forgein materials in fl uid will
dramatically reduce the life of the pump. Follow
steps below to change hydraulic fl uid:
WARNING! RELIEVE HYDRAULIC SYSTEM
OF ALL PRESSURE BEFORE ADJUSTING
OR SERVICING. SEE “RELIEVING HYDRAULIC
PRESSURE” IN “SERVICE” SECTION OF THIS
MANUAL.
WARNING! HYDRAULIC SYSTEM MUST
BE PURGED OF AIR BEFORE OPERATING
TO PREVENT SERIOUS INJURY OR DEATH.
WARNING! HIGH-PRESSURE FLUIDS
CAN PENETRATE THE SKIN AND CAUSE
SERIOUS INJURY OR DEATH. SEEK MEDICAL
TREATMENT IMMEDIATELY IF INJURED BY HIGH-
PRESSURE FLUIDS. USE CARDBOARD OR WOOD
TO DETECT LEAKS IN THE HYDRAULIC SYSTEM.
Filter Cap
USE PULL TABS TO
REMOVE FILTER
FIG. 1
1. Turn off engine and remove spark plug to
prevent engine from starting. Be sure all
hydraulic fi ttings and hoses are relieved of
pressure, Fig. 1.
2. Make sure a proper container is available
to drain hydraulic oil. Remove hydraulic
fl uid drain plug and drain hydraulic oil into
container, Fig. 1.
Remove Spark
Plug