MBW GPR135 - Manual (Page 11)

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Engine Speed
1. Engine speed is factory set according to the speeds
listed in the Specifications section of this manual. Do
not tamper with the governor setting. The governor
establishes safe operating limits which must not be
exceeded.
2. Refer to the engine Owner’s Manual for procedure on
setting operating and idle speeds.
3. The engine operating speed should be set to 3600
RPM.
4. The engine idle speed must not exceed 1800 RPM. If
the idle speed is greater than 1800 RPM the clutch
may not disengage.
Battery Maintenance
1. Loose or corroded battery terminals will lead to weak
starts and poor charging. Clean posts and connectors
with a wire brush for best connection. Remove dirt
from case using a solution of (2) teaspoons baking
soda and (1) pint of water. Dry completely.
2. Always recycle old battery when replacing. Improper
disposal of batteries can lead to contamination of soil
and ground water.
Battery Charging
1. If unit is not routinely used, charging your battery may
be necessary. An unused battery will self-discharge
over time. Under charged batteries may suffer
permanent damage and premature failure.
Belt Adjustment
If any belt stretch develops follow these steps:
Refer to Main Assembly, page 22.
1. Remove the belt guard, refer to engine assembly
pages.
2. Loosen (do not remove) the four hex head
capscrews (#32) securing the engine deck to the
baseplate.
3. Tighten the belt by lifting the engine deck to provide
3/8 - 3/4 inch of “play” on one side of the belt. Be
sure to keep the engine deck level with the
baseplate when adjusting the belt.
4. Retighten the four hex head capscrews.
5. Reinstall the beltguard.
Checking Hydraulic Fluid
1. To avoid contaminating the hydraulic oil clean all dirt
& debris from around the fill plug on handle.
2. Remove fill plug. With handle in operating position, oil
level to be at bottom edge of inside hole as shown.
FILL PLUG
FLUID LEVEL TO BE UP
TO BOTTOM EDGE OF
INSIDE HOLE.