Operation - 7420, 8420, 8420G
32
PTO Driveline Length Check
Due to variations in distances between tractor PTO
shafts and implement input shafts, drivelines may
need to be shortened or a longer shaft may be
required.
When fitting the implement to the tractor, the
PTO driveline, with telescoping sections, must
be inspected. When the sections are at the most
compressed operating position, the sections must
not “bottom out”.
At its shortest length, there must be at least 2 in.
(50.8 mm) of clearance between each section end
and opposite section end at the most compressed
operating position.
When the sections are at the most extended
position, there must be sufficient engagement
between the sections.
At its farthest operating extension, a minimum
section engagement of 33% of shaft length must
be maintained.
WARNING
AVOID INJURY OR DEATH
• Do NOT exceed the rated implement PTO speed.
• Stay clear of rotating driveline.
• Keep bystanders away.
• Keep hands, feet, clothing and long hair away.
• Keep PTO shields and all guards in place.
• Disengage PTO, move the tractor controls to
the Neutral position, stop the engine and make
sure all rotating components are stopped before
leaving the operator’s position.
• Do NOT service the tractor or implement with
the PTO engaged.
• Do NOT service the implement in a raised
position unless properly blocked and with all
rotating components stopped.
• Disengage PTO for road travel.
PTO Driveline Bottoming Out Check
Stop the engine and leave the operator’s position
(See “Leaving The Operator’s Position” in
Operation section).
Make sure the PTO driveline and all rotating
components have come to a complete stop before
leaving the operator’s position (if applicable).
Figure 17
1. Disconnect the PTO driveline from the tractor and
slide the PTO driveline together until fully retracted
(compressed).
2. Measure the retracted (compressed) length of PTO
driveline [Figure 17].
3. Extend the PTO driveline 2 in. (50.8 mm) from the
retracted length and place a mark on the inner guard
at the end of the outer guard [Figure 17].
4. Reattach the PTO driveline to the tractor PTO shaft.
5. Enter the operator’s position. Start the engine.
6. With the rear PTO DISENGAGED, raise and lower
the implement and watch the PTO driveline extend
and retract.
7. If the outer PTO driveline guard slides in (retracts)
over the mark at any point of travel, the PTO driveline
needs to be shortened.
MARK INNER
GUARD HERE
RETRACTED
(COMPRESSED LENGTH)
2” (50.8 mm)
Summary of Contents for Allied 8420G
Page 1: ...092017 FK331 OPERATOR AND PARTS MANUAL Snowblower Model 7420 8420 8420G...
Page 2: ......
Page 6: ...Warranty Registration Form 7420 8420 8420G 2...
Page 8: ...Introduction 7420 8420 8420G 4...
Page 12: ...Introduction 7420 8420 8420G 8...
Page 14: ...Safety 7420 8420 8420G 10...
Page 24: ...Assembly 7420 8420 8420G 20...
Page 32: ...Operation 7420 8420 8420G 28...
Page 44: ...Maintenance 7420 8420 8420G 40...
Page 52: ...Parts Identification 7420 8420 8420G 48...
Page 70: ...Specifications And Shipping Kit Numbers 7420 8420 8420G 66...
Page 72: ...Specifications And Shipping Kit Numbers 7420 8420 8420G 68 HardwareTorque Values Metric Chart...
Page 73: ...Specifications And Shipping Kit Numbers 7420 8420 8420G 69 Imperial Chart...
Page 74: ...Specifications And Shipping Kit Numbers 7420 8420 8420G 70...
Page 76: ...Warranty 7420 8420 8420G 72...
Page 79: ......