
HPFH-SERIES AIR SCREWDRIVER OPERATION MANUAL
5 Refer to the below drawing instruction: Release first the Torque cover for torque adjustment, then tighten
necessarily the torque cover before operating. For better Torque management, there are also color rings for
torque management.
1 2 3 4
Release Torque Cover Drop Torque cover out Tighten to the right: Loosen to the left:
increase torque. decrease torque
6 Press the tool for start rotating, release it to stop operating, due to the safety consideration, please hold
carefully the tool during the whole operating duration.
7 Push Valve reverse switch for instantly changing of air motor rotation direction. Please stop first the
operation then reverse patented both way valve switch to change the rotation direction.
8 Air motor will automatically stop when the load reaches at the pre-set torque.
Caution : Improper operation may damage the tool.
AIR SUPPLY
1 Air tools are adversely affected by moisture. Since air from compressor contains much moisture and dust, it
is desirable to provide a filter in the pipeline to remove such undesirable elements.Also take the drain out
from air tank every day.
2 When using brand-new air hose or air pipe, blow and clean the air hose or pipe inside before installation.
3 Keep air hose or air pipe inside clean to prevent airdrop problem caused by lots of drain and dust
accumulated, either to avoid possibly inside diameter smaller problem after long term usage.
4 When disconnect air hose from air tool during operation, do not drop air hose end to the floor as dust or
other element may get into air hose.
5 Use air regulator to keep stable air pressure at 6.0kgf-cm²( 80~90 psi) at the toll. It is important to get
proper air pressure at the toll.
6 With high quality Oil-free motor, any moisture or lubrication injection may damage the air screwdriver,
please keep tool dry and avoid oil based substances exposing to the products. For avoiding moisture
affection, usingAir Dryer is necessary in wet area or under moist weather.
TOOL ADVANTAGE
1 High quality Oil-free Motor
High quality Oil-free Motor is our new design used on high technologic tool. At the beginning operation, the
power of Oil-free motor keeps stable at it’s top capability without any oil injection, but the power of Current
motor decreases till it’s lowest capability after 32 hours operating unless oil adding. The high technologic
Oil-free motor increases 60% torque and keeps noise as standard 74/78dB which prevents operator and
environment from noise damaging and accords with industrial classified tool standard.
(Please refer to the below table about Oil-free and current motor.)