Wrenches; Adjustable Wrenches - Hisun HS700UTV-4 Maintenance Handbook

Wrenches

Open-end, box-end and combination wrenches
(figure 5) are available in a variety of types and sizes.
The number stamped on the wrench refers to the
distance of the fastener head.
The box-end wrench is an excellent tool because
it grips the fastener on all sides. This reduces the
chance of the tool slipping. The box-end wrench is
designed with either a 6 or 12-point opening. For
stubborn or damaged fasteners, the 6-point provides
superior holding because it contacts the fastener across a wider area at all six edges. For general use,
the 12-point works well. It allows the wrench to be removed and reinstalled without moving the handle
over such a wide are.
An open-end wrench is fast and works best in areas with limited overhead access. It contacts the
fastener at only two points and is subject to slipping if under heavy force, or if the tool or fastener is
worn. A box-end wrench is preferred in most instances, especially when braking loose and applying
the final tightness to a fastener.
The combination wrench has a box-end on one end and an open-end on one end and an
open-end on the other. This combination makes it a convenient tool.

Adjustable wrenches

An adjustable wrench or Crescent wrench (Figure
6) can fit nearly any nut or bolt head that has clear
access around its entire perimeter. An adjustable
wrench is best used as a backup wrench to keep a
large nut or bolt from turning while the other end is
being loosened or tightened with a box-end or socket
wrench.
Adjustable wrenches contact the fastener at only
two points, which makes them more subject to slipping
GENERAL INFORMATION
Another way to prevent cam out and to increase the
grip of a Phillips screwdriver is to apply valve
grinding compound or permute screw ＆ socket
Gripper onto the
loosening/tightening the screw, clean the screw
recess to prevent engine oil contamination.
NOTE
screwdriver tip.
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