Operation and maintenance manual

Drive Belts QSB4.5 and QSB6.7
Page 3-4 Section 3 - Maintenance Procedures at Daily Interval
Lubricating Oil Level
Maintenance Check
CAUTION
Never operate the engine with oil level below the L
(low) mark or above the H (high) mark. Poor engine
performance or engine damage can occur.
The engine must be level when checking the oil level to
make sure the measurement is correct.
Shut off the engine for an accurate reading.
Wait at least 15 minutes after shutting off the engine to
check the oil level. This allows time for the oil to drain into
the oil pan.
For additional lubricating oil recommendations and oil pan
capacity information, refer to Maintenance Specifications
(Section V).
Drive Belts
Maintenance Check
Poly-Vee Belt
CAUTION
Make sure that the engine is switched off and any
starting mechanisms are isolated before any
inspections are made. Daily belt inspections can be
carried out through an appropriate aperture. Do not
remove any guards.
Inspect the belts daily. Check the belt for intersecting
cracks. Traverse (across the belt width) cracks are
acceptable. Longitudinal (direction of belt length) cracks
that intersect with transverse cracks are not acceptable.
Replace the belt if it is frayed or has pieces of material
missing. Refer to Section A for belt adjustment and
replacement procedures.
Belt damage can be caused by:
• Incorrect tension
• Incorrect size or length
• Pulley misalignment
• Incorrect installation
• Severe operating environment
• Oil or grease on the side of belts.