13
Rev. 6/22
GB745 INSTALLATION TOOL S/N: 3569 AND ABOVE
PLEASE CONTACT GAGE BILT FOR ALL OTHER SERIAL NUMBERS.
STROKE LIMITER INSTALLATION INSTRUCTIONS
WARNING:
Stroke limiters are designed for the protection of the operator and equipment. Failure to operate tool without the
proper stroke limiter will result in damage to the nose assembly or tool and may result in personal injury.
WARNING:
Do not cycle tool without air bleeder assembly (704153), or the screw and stat
-
o
-
seal, installed in tool head. Severe
personal injury could result.
WARNING:
Use CAUTION when removing screws, air bleeder assembly (704153) and fill bottle (745263). Hydraulic oil may be
under pressure.
CAUTION:
Before filling handle assembly (744129), air piston assembly (744121) must be all the way down.
CAUTION:
When forcing piston rod assembly (745344) downward, with head cylinder (745366) removed, hydraulic oil will eject forcibly
from handle assembly (744129).
CAUTION:
When bleeding tool, ensure tubing is free from kinks or other obstructions.
Note:
•
If you are unsure your nose assembly requires a stroke limiter, contact Gage Bilt for assistance.
1. Cycle tool to the rear position and disconnect air.
2. Remove end cap (745616).
3. Install stroke limiter over rear of piston (745310). See nose assembly selection chart to select stroke limiter.
4. Remove button head cap screw (402482) and stat
-
o
-
seal (S572) from bleeder hole marked
“1”.
5. Install end cap (745616) and torque to 45 foot lbs. (61Nm). Oil will drain from bleeder hole marked
“1”
during installation.
6. Attach button head cap screw (402482) and stat
-
o
-
seal (S572) to bleeder hole marked
“1”
and torque to 35
-
40 inch lbs. (3.95
-
4.52 Nm).
Do not over tighten.
7.
Connect tool to air and using a pair of dial calipers, check for full stroke (see stroke limiter chart below).
With actuator lever assembly (704343) released check dimension
“
A
”.
While holding actuator lever assembly (704343) check
dimension
“
B
”.
Subtract dimension
“
A
”
from dimension
“
B
”.
If Dim
“
A
”
does not check full forward (.147±.015), DISCONNECT AIR SUPPLY, remove button head cap screw (402482) and stat
-
o
-
seal (S572)
from right hole (stamped #1) and attach air bleeder assembly (704153).
Remove button head cap screw (402482) and stat
-
o
-
seal (S572) from left hole (stamped #2).
Insert a
3/8”
Allan wrench in back of piston (745310) and manually push the piston (745310) full forward until dimension
“
A
”
checks
correct. Replace stat
-
o
-
seal (S572) and button head cap screw (402482) into left hole (stamped #2).
Continue bleeding tool by following steps 6 –
14
from filling and bleeding procedure in GB745 manual.
