Nilfisk-Advance 21KB Service Manual page 49

Service Manual – PBU Propane Floor Burnisher
10. Advance the throttle.
a. Models without a clutch: advance the
throttle lever fully (lever locks into
detent) to achieve the highest possible
engine RPM.
b. Models with a clutch: pull the throttle
lever up (against handle) to achieve the
highest possible engine RPM.
11. Loosen the jam nut that secures the high speed
throttle set screw.
Using the tachometer, adjust the high speed
throttle set screw so that the engine runs at
3500 to 3600 RPM when the throttle lever is
fully advanced. Tighten the jam nut to secure
the high speed throttle set screw at this
position.
CAUTION: use of gloves is recommended.
Figure 62 Throttle Lever, Models without Clutch
Figure 63 Throttle Lever, Models with Clutch
Jam Nut
High Speed
Throttle Set
Screw
Figure 64 High Speed Throttle Screw
Engine System 49
Advance
Throttle
Lever
Pull
Throttle
Lever Up