Stanley IW12 Service Manual page 11

OPERATION
3. Select the direction of impact desired using the rotary
reversing valve located on the left side of the wrench. To
select clockwise direction, move the lever toward the front
(drive end) of the wrench. To select counterclockwise direc-
tion, move the lever to the rear (handle end) of the wrench.
Note:
To more accurately tighten bolts, lubricate threads,
check with a torque wrench and duplicate time of im-
pacting for other bolts of the same length and thread
size.
4. Squeeze the trigger to activate the wrench.
5. Release the trigger to stop the wrench.
COLD WEATHER OPERATION
If the wrench is to be used during cold weather, preheat the
hydraulic fl uid at low engine speed. When using the nor-
mally recommended fl uids, fl uid temperature should be at
o o
or above 50 F/10 C (400 ssu/82 centistokes) before use.
Damage to the hydraulic system or wrench can result from
use with fl uid that is too viscous or too thick.
POST OPERATION
UNDERWATER MODELS ONLY
The wrench impact mechanism must be cleaned and
greased with waterproof grease after every day of use.
The main housing valve and motor are sealed and do not
require maintenance unless they are malfunctioning.
Remove, clean, grease and assemble the impact mecha-
nism as described in the IW12 Service Manual.
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