CONNECTING
THE
LOAD
The dimensions of various power takeoff shafts are as
follows:
~~
SHAFT
STD
DIAMETER LENGTH
KEY SIZE
1-711 6 3-1/16 318
(36.51
mml
(77.78
mml
(9.5
mm)
Rockford
Clutch
Gear
Reduction
Belt Drive
V-belts are preferable to flat belts. Consult a reliable
belting supplier for recommendations regarding size
of pulleys, number
of
belts, etc. required.
A
typical
belt drive installation
is
shown in Figure
3.
1-7/16 3-1/16 318
(36.51
mm)
(77.78
mm)
(9.5
mm)
1-114 2-314
1
I4
(31.75
mm)
(69.85
mm)
(6.35
mm)
~KEEPSHAFTS
OFENGINE
I
?AND LOAD PARALLEL?
I
I
I
.
..
---
_-
BELT
IN
-PULLING LOAD
FIGURE
3.
DRIVE BELT INSTALLATION
Comply with the following installation requirements:
1.
2.
3.
4.
5.
The shafts of the engine and the load must be
parallel with each other.
The pulleys
of
the engine and the load must be in
alignment.
Mount the engine pulleys as close
to
the engine
as possible.
If the installation permits, belts should run
horizontally.
Some method of disconnecting the load forstart-
ing is recommended. If a clutch
is
not used, a
belt-tightener idler arrangment can be used.
Flexible Coupling
If aflexiblecoupling engine-to-load drive is used, the
load shaft must be in line and centered with the
engine shaft (Figure
4).
Reduction Gear
Drive
Reduction gear drives are mounted at the factory
(when ordered). The method of connecting the load
is
thesameaswhen connecting directlyto theengine
shaft.
I
I
wf
SHAFT-
LOAD
\
FIGURE
4.
FLEXIBLE COUPLING
Drain the gear box after the first
100
hours of opera-
tion and refill with fresh lubricant of the recom-
mended grade. Repeat this procedure every six
months thereafter, or every
100
hours.
Use only
SAE
50
motor oil or
SAE
90
mineral gear oil.
Do not use lubricants commonly known as extreme
pressure lubricants, hypoid lubricants, etc.
Maintain the proper oil level between changes. Over-
filling will cause foaming, which can lead to an
oil
leak due to overheating. Remove the filler plug on top
of the case and the oil level plug from the face of the
gearcase. Fill thecaseuntiltheoil just beginstoflow
from the oil level plug hole. Gear box holds
1/2
pint
U.S.
measure
(.24
litre). Reinstall both plugs.
Clutch Installation
A
Rockford Clutch can be installed atthe factory or in
the field, installation procedures are provided with
the clutch.
(FASTEN
UNDER
CONVENIENT
BOLT
ON
ENGINE)
FIGURE
5.
BATTERY CONNECTIONS
,
10
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