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Remove the Valve Box Cap (12), the Valve (13), and the Valve
Box (15).
If required, remove the four Valve Box Dowels (14) from the Valve
Box Cap.
Disassembly of the Head Block
For Model 241 only
Clamp the Barrel (33) in leather-covered or copper-covered vise
jaws with the Head Block (20) upward.
Using a large wrench, unscrew the Head Block from the Barrel.
Remove the Exhaust Deector Assembly (46), Deector Retainer
Assembly (48), Exhaust Silencer (50) and Deector Screen (51).
Remove the Valve Box Cap (27), Valve (28), Valve Box Cap
Dowel (30), Valve Box (29), and the Valve Box Dowels (31).
Remove the Lubricator Valve Cap (25) and the Lubricator Valve
Spring (24).
Carefully push the Lubricator Valve (22) from the Head Block
through the lubricator valve cap bore.
If required, remove the Lubricator Valve Face (23) from the
Lubricator Valve and the Lubricator Valve Seal (21) from the Head
Block.
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Disassembly of the Barrel
For both Models
Clamp the shaft of the Piston (23, 43) in leather-covered or
copper-covered vise jaws with the Malleable Butt (34, 45)
downward.
Using a large hammer, tap the Butt o the Piston.
For Model 130 only
3. Clamp the Barrel (24) in leather-covered or copper-covered vise
jaws with the Piston sideways.
4. Pry the Guide Retainer Lock (33) from the groove in the Barrel.
5. Unscrew the Guide Retainer (32).
For Model 241 only
6. Loosen the Locking Nut (42A) and remove the Guide
Retainer (41).
7. Gently remove the Piston from the Barrel.
For both Models
8. Gently pull the Piston to remove the Front Rod Seal (31, 40), the
Piston Rod Guide (30, 38), the Rod Rear Seal (29, 37), and the Seal
Support (28, 36) from the Barrel.
9. Remove the Seal Support Gasket (27).
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Assembly
General Instructions
Whenever grasping a tool or part in a vise, always use leather-
covered or copper-covered vise jaws. Take extra care with
threaded parts and housings.
Always clean every part and wipe every part with a thin lm of oil
before installation.
Apply a lm of O-ring lubricant to all O-rings before nal
assembly.
Assembly of the Barrel
For Model 130 only
Clamp the Barrel (24) in leather-covered or copper-covered vise
jaws with the butt end upward.
Place the Piston (23) into the Barrel, big end rst.
Carefully seat the Seal Support Gasket (27) in the groove in the
Barrel.
The Seal Support (28) inserted into the Barrel will retain the Seal
Support Gasket.
Place the Rod Rear Seal (29), small end rst, into the Seal Support.
With the cup end of the Piston Rod Guide (30) facing the butt
end, slide the Piston Rod Guide down the bore until it seats in the
Seal Support.
Seat the Rod Front Seal (31) into the Piston Guide Rod.
Retain the Rod Guide/Sealing Assemblies with the Guide
Retainer (32).
Snug the Guide Retainer until one of the slots in the Retainer
aligns with one of the Guide Retainer Lock holes in the Barrel.
Install the Guide Retainer Lock (33) into the groove in the Barrel
and through the lock hole.
For Model 241 only
If required, reinstall the Seal Support Gasket (34) into the groove
in the Barrel (33).
Place the Seal Support (36) on the Piston (43). Place the Rod Rear
Seal (37) on the Seal Support.
Follow the Rear Seal with the Piston Rod Guide (38). Place the Rod
Front Seal (40) onto the Piston and into the Rod Guide.
Place the Piston and the seal/support assembly into the Barrel.
Secure the Piston with the Guide Retainer (41). Lock the Guide
Retainer with the Locking Nut (42A).
Assembly of the Valve Box
For Model 130 only
Clamp the Barrel (24) in leather-covered or copper-covered vise
jaws with the butt end downward.
Place the Valve Box (15) into the Barrel, large diameter down.
Place the Valve (13) on the Valve Box.
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Place the four Valve Box Dowels (14) into the Valve Box through
the Valve.
Place the Valve Box Cap (12) on the Valve.
Secure the valve assembly with the Head Block (1).
Assembly of the Exhaust Adapter
For Model 130 only
Place the Adapter Screen (17) into the Piped-Away Exhaust
Adapter (16).
Ensuring that the holes in the Adapter Baes (18), the Exhaust
Silencers, the Adapter Screen, and the Exhaust Adapter align,
alternately insert the Exhaust Silencers and Adapter Baes into
the Exhaust Adapter.
While holding the exhaust assembly together, place it on the
Head Block (1) and secure it with the Adapter Screws (20).
Screw the Pipe Coupling (22) on the Pipe Nipple (21). Place the
Pipe Nipple through the Exhaust Adapter and screw it into the
Head Block.
Assembly of the Head Block
For Model 241 only
Clamp the Barrel (33) in rugged vise jaws with the Butt (45) end down.
Install the Deector Screen (51), Exhuast Silencer (50), Deector
Retainer Assembly (48) and Exhaust Deector Assembly (46).
Carefully place the Valve Box Dowels (31) and the Valve Box (29)
on the Barrel.
Place the Valve Box Cap Dowels (30) into the Valve Box. Place the
Valve (28) and the Valve Box Cap (27) onto the Valve Box.
Secure the valve assembly with the Head Block (20). Tighten the
Head Block to 500 ft-lb (678 Nm).
If required, replace the Lubricator Valve Seal (21) in the groove in
the lubricator valve bore.
If required, replace the Lubricator Valve Face (23) onto the
Lubricator Valve (22).
Carefully push the Lubricator Valve into the Head Block.
Place the Lubricator Valve Spring onto the Valve and secure the
assembly with the Lubricator Valve Cap (25).
Assembly of the Throttle Valve
For Model 130 only
If required, press the Throttle Valve Bushing (2) into the Head
Block (1) being careful to align the timing marks on the Block.
Clamp the Head Block in leather-covered or copper-covered vise
jaws with the Throttle Valve Cap hole upward.
Place the Throttle Valve Face Washer (7), the Throttle Valve Face (9)
Throttle Valve Face Cap (8) onto the Throttle Valve (6). Secure the
assembly with the Throttle Valve Face Cap Nut (10).
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