GB-14
JACOBSEN G PLEX II Series: ZV
MAINTENANCE AND PARTS MANUAL
GB
ENGINE ACCESS
The rear section of the unit can be raised for better
access to the engine. Loosen the two handknobs
above the rear fork. Raise the fuel tank frame.
Support it by pivoting the rod beneath the fuel tank
down and securing it in the cup next to the fork pivot
(See Fig. 27).
WARNING
• DO NOT remove the fuel tank cap while
the tank is in the raised position.
Figure 27
Rear Section of Unit Raised
MAINTENANCE GUIDE
The following maintenance charts have been
compiled as a general guideline for service
intervals, based on hours of operation. Refer to the
engine manual for further maintenance information.
AS REQUIRED
Replace air cleaner element
Gas:
refer to the engine operator's manual
Diesel:
refer to Air Cleaner section on page 17
DIESEL ENGINE OIL
Change engine oil and filter after the first 50 hours.
Then every 100 hours of operation or yearly, whichev
NOTICE
• Depending on operating conditions, the
engine oil and oil filter may need more
frequent replacement to maintain engine
performance and help prevent
unnecessary repairs.
FIRST 35 HOURS
Check for loose parts
Check valve clearance
Check idle speed
EVERY 25 HOURS OR WEEKLY
Lubricate all lubrication fittings (refer to Lube Chart)
EVERY 75 HOURS
Check tire pressure (with low pressure tire gauge)
Change fuel filters (diesel only)
Check for loose parts
EVERY 200 HOURS
Check valve clearance and adjust as required
Change hydraulic oil and filter
EVERY 600 HOURS (OR YEARLY)
Perform previous services
Replace primary (large) fuel filter cartridge
Check starter motor brushes
Check all belts and hoses, replace as required
Clean battery terminals
Diesel:
Drain and replace engine coolant
Check glow plugs
Check injection pump and timing
BACKLAPPING
Routine backlapping will help keep cutting blades
sharp and increase reel life and
performance. Backlapping frequency
depends on many variables, but should be
performed frequently as normal
maintenance. Refer to the backlapping
procedure located on page 19 of this
manual.
ENGINE OIL LEVEL
Damage to engines due to improper maintenance or
use of incorrect oil quality and/or viscosity is not
covered by the engine warranty (refer to the engine
operator’s manual for crankcase capacity and
recommended oil grade and weight).
Unit must be on a level surface to obtain an
accurate oil level reading.
The oil level must be kept between the two marks
on the dipstick.
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